Was reading this thread a while ago and because I will probably end up building my chassis in a pop up garage or something similar I was interested in a solution.
Why not wrap the chassis members in something like mini pallet wrap, should be easy enough to apply then easy enough to remove sections to weld barackets etc then re-apply again.
Ok it wont be any good for the bottom rails while the chassis still fixed to the build table but the rest should be ok.
What do peeps think
http://www.ebay.co.uk/itm/2-Rolls-10...#ht_3353wt_982