personally, i would recommend doing somehting else for your project and building the bike in your spare time. If your department is nice enought to let you even consider building a frame for your gcse then i'm sure they wouldn't mind letting you ue the workshops after school etc.
also, if you plan on getting a good grade, a frame is definitley a bad idea unless you can give it some crazily nice paint job with a perfect finish as its there that you will get your marks. You will get no marks atall for using lugs you haven't made yourself and just 'attaching the pipes'..
personally, i would recommend doing somehting else for your project and building the bike in your spare time. If your department is nice enought to let you even consider building a frame for your gcse then i'm sure they wouldn't mind letting you ue the workshops after school etc.
also, if you plan on getting a good grade, a frame is definitley a bad idea unless you can give it some crazily nice paint job with a perfect finish as its there that you will get your marks. You will get no marks atall for using lugs you haven't made yourself and just 'attaching the pipes'..