Winking wink, that's a lot of exclamation marks!! !!!
I remember seeing it on ebay, and being attracted by the colour, but then noticed the size of the frame. I've seen quite a few 27" wheels for sale on ebay (beware of steel rims, and I'm not personally convinced by Quando hubs), and Schwalbe and Panaracer both sell 27" tyres.
I'm in a similar situation to you, and the fixed vs. geared decision has been very tough. I think it's cheapest to start with fixed, then sell the rear wheel and buy the stuff for geared if it doesn't work out.