Joined: Sep 2009
Posts: 1,538
Likes: 2
From: Teenage Wasteland, USA
Bikes: '74 Raleigh LTD-3, '76 Motobecane Grand Jubile, '83 Fuji TSIII (customized commuter), '10 Mercier Kilo WT (fixed obsession), '83 Bianchi Alloro, '92 Bridgestone MB-1 (project), '83 Specialized Expedition (project), '79 Peugeot UO-8 (sold)
...and of course I'm only offering those suggestions because it really doesn't sound like you're interested in flipping a vintage 10-speed into a Singlespeed. It would be cheaper, but require time, tools, and know-how.
So yeah, that's why I'm just directing the OP to some retail (before C&V get all over me for it).