Welcome to Geekhack!
There's a lot more to keyboards than most people realise. When I started looking a few years back there was much less choice, but compared to what I had been using there were too many options even then.
To help with the acronyms, there's a
glossary thread.
One place to get an Ergo Dox is Massdrop - they run a drop from time to time. Get all the bits you need, no need for any laser cutting.
Pok3r is another very popular keyboard. They have PBT keycaps already, don't they?
Many people start with a Pok3r of some sort. Lots of support, standard layout, with or without backlighting, PBT keycaps, aluminium cases ...