[geeman]

For the holes for the balls joints use the 19mm tapered reamer from axminister tools.

Floor ,I and others used 2mm 5251 aluminuim, much stronger grade. I got it from Parkers steel as it was the cheapest at the time. for fixing it use a sealant, and then pop rivet it. Its a pain to drill so many holes though.

For the roll bar most people on here havnt used seamless tubing, partly due to cost an the fact Ashg had previously done group buys for roll bars. Not sure if he'll be doing another

For the steering column extensions I used 2.5 mm tubbing, don't remember inner dia. Not sure what others have done..