Ebay trawling it is, problem is I have no idea what is what. Apart from the fact I'm looking for steel and you wanna aim before 1980 if possible i think? Ah well research research research.
If your looking to go fixed in the future. You want to be able to adjust the chain tension. So something with horizontal drop-outs is what you want.
Also old bikes sell for the same as old frames. So you might as well try and pick up a complete bike.
Once you you have the frame/bike it will be easy to decide what else you need. A proper fixed/singlespeed rear wheel is always a nice addition. But you can singlespeed a bike easy enough with the existing wheel, and swap this later to go fixed, to save money.
If your looking to go fixed in the future. You want to be able to adjust the chain tension. So something with horizontal drop-outs is what you want.
Also old bikes sell for the same as old frames. So you might as well try and pick up a complete bike.
Once you you have the frame/bike it will be easy to decide what else you need. A proper fixed/singlespeed rear wheel is always a nice addition. But you can singlespeed a bike easy enough with the existing wheel, and swap this later to go fixed, to save money.