Topre Realforce 87U 45g owner and SC2 player here.
I like it and have no issues with this board in SC2. I was having problems with my old scissor-switch Logitech Illuminated Keyboard (which I kinda liked otherwise) in game and that's why I ended up getting this Realforce. However, when weighing a decision between boards I was like 10% gaming / 90% typing and this is definitely a typing keyboard for me. I still like gaming with it better than any other keyboard I've had but ultimately it has to be something I can type on for 16-20 hours a day.
To be honest though, SC2 pros generally play with "cheap" keyboards -- in fact, the most expensive keyboard I'm aware of in the SC2 scene is LiquidTyler's who uses Filco, there's not a single SC2 pro using Topre that I'm aware of but I would say they're excellent keyboards. A lot of the Korean pros tend to use the same board (Qsenn DT-35) and it's like $35. I don't feel like a keyboard can really make that much of a difference in SC2 play other than use something you're comfortable with where you won't hit the wrong keys. I've used a Blackwidow Stealth with browns and I wasn't too fond of it, but the Reds should be somewhere in the ballpark of what a Topre 45g feels like. I hate browns for gaming. I. hate. browns. for. gaming. Some people love em...
I would definitely say go tenkeyless though. I actually have a KBC Poker on the way with Blues (I couldn't get Reds...still waiting for those...) that I might try out with SC2 (might lock the top row to F keys and use a numpad on the left). The reduced footprint between kbd and mouse (i have my pad arranged vertically) does reduce travel and how much i have to focus on when playing.
One question I do think needs answering though -- how competitive is your SC2 play? If you're planning on traveling with a keyboard, you won't want something that can't handle the travel abuse or is hard to replace if stolen or it fails. This is one of the main reasons I think the pros use keyboards that are ubiquitous and easy to replace at LAN events (since those Razers and Steelseries are being sold by EVERYONE -most have blacks or blues btw). Like, if you spill a drink on your Topre, is it going to sink your whole tournament because you aren't comfortable playing on what you'll have to replace it with.
tl;dr: I think the boards that HaiiYaa recommended are all top-notch as is the topre. The question about if you travel to LANs might outweigh those though.
As for the mouse - go with the G9x
