I've got several tasty frames that I'm going to list soon (next week maybe?) . Mostly vintage/handmade goodness but also a Peugeot road frame that is freshly refinished and powder coated (traditional Peugeot blue/white forks) including BB & headset and, IIRC, a seatpost. Should all be suitable as I'm also '6 foot-ish'!
Got a pair of wheels (aero rims/flip-flop/inc tyres); cheap but not wretched, as well as a complete, fresh bike (dammit, I don't want to!), but over your budget (by £150 or so).
Got any 55cm frames in that lot?