Retro bike for bobber project

[stueyt]

As it says in the title, I am looking for a cheap retro bike for a bobber project, a runner would be preferred, not too fussed on overall condition but must be cheap. Depending on what I am offered will depend on the style of bike I will be building, I would build a street fighter, bobber, chopper anything.

Please help.

Cheers,

Stu.