To answer the question in short: quite possibly yes, but you'll have to look for it.
In long...
There's not a lot that's new and clicky and easily obtained anywhere... A few years ago it was not uncommon for new boxed 1391406s and Dell AT102Ws to show up on eBay, but these have dried up.
More recently Cherry UK has been clearing its non-RoHS compliant stock on eBay, unfortunately it looks like all they have left with MX switches is a Spanish 105 layout 'board (with Reuters logo!). The classic G80-3000
seems to be stocked by various places though, but do check the full part number to be sure of the switch (see
here).
There are indeed third party users of Cherry switches, but I couldn't name one that produces anything in any UK layout. ALPS don't do keyboard keyswitches any more, Fujitsu no longer manufacture the FKB4700 series in layouts other than US 104 and I was very unsuccessful at trying to find a lead for any new UK 105s. Unicomp will, it seems, do whatever you require layout-wise, but they have no UK distributor.
Of course, if you're prepared to wait it out for a while, stuff can and does show up on eBay. I noticed
these recently (frankly I cannot justify them...), the one in the foreground looks like a Cherry G80-3000. They also had some
"MaxiSwitch" keyboards (any ideas about these anyone?) which by the name hopefully are keyswitch-based, but I wasn't able to find out.
For such windows-key-less 'boards, searching the 'bay for "102 keyboar*" [in All Categories, titles only, and no quotes in any of these examples] works well (when it does work) at finding people who know what they have (somehow there is something of an assumption that even International keyboards with Windows keys still have 101 keys because it is the standard...).
For a far broader search, I trawl the Computing category, titles only, with this monster: "keyb* -usb -wirel* -multim* -wind* -lapto* -noteb* -kvm -lite -foil -sili* -micros* -inter* -clean* -cyber -medi* -exten* -apple -files -inspi* -thinkpa* -gel -logit* -saite* -gami* -omnib* -satel* -aspir* -easyn* -vaio -mini -sticke* -belk* -kens* -trus* -nove* -fold* -pd* -mus* -cov* -pent* -amd". It is sloooooow, very wide-ranging, leaves a lot of irrelevancies and may not be suited to anyone except me, but it could be a start, if a too highly evolved one. Using the negatives in the Keyboards category cuts out a lot of stuff, but reduces the mis-listing flexibility.
The negativity of that crazy thing emphasises two points: there's not a lot out there (that's seen as worth selling, for sale and advertised anyway), and that that there is people don't necessarily know much about. Positive searches like "IBM model M" just don't bring up much at all in the UK. You do sometimes see more interesting keyboards listed as relatively generic keyboards, since to most people a keyboard is a keyboard, after all. Here follows an example...
Probably the most common clicky 'board over here is the Dell AT102W. These were options on home-oriented Dimension PCs, but seemingly standard(?) on business-oriented Optiplexs for a time, and continued to be seen, perhaps too coincidentally, until around the time ALPS stopped making keyswitches (any thoughts on that?....). You might still come across them in the wild occasionally. It appears that with the slightest of marketing they will do
astonishing well at the moment, but often don't get it. Using my old "Dell ke* -black -silver -usb -latit* -inspir* -wireless -axim -laptop",
here's one on offer with no interest, and in much nicer colour. IIRC, these generally use the white ALPS switches (the keycaps are a right pain to pull off) and are pretty nice to type on, with a positive click but relatively light touch, and some weight to the board.
If you are keen to try a Model M, here's a potential lead on the
uk.adverts.computer newsgroup [click the dots and type the CAPTCHA for the full address]. On comp.sys.ibm.ps2.hardware, Bob Eager mentioned the
availability of PS/2 stuff and ISTR him mentioning having a number of Model Ms, maybe he could be persuaded. I do recall another couple of possible leads but my references on these are somewhat older, let me know and I'll pass on what I knew if you like.
Speaking of newsgroups, a want ad in uk.adverts.computer might well be of assistance, just watch out for the occasional idiocy in there.
If I wasn't so tired I'd ramble a bit more.