Go for it,, get A Rimmers catalogue and start spending, my GT6 Mk3 is just about to have the tub lifted off, when I started I found a right old can of worms, the welding is one of the best bits, I purchased some VACTAN RUST CONVERTER AND PRIMER RUST TREATMENT, (you don't need to wash this off ), and have a good stock of cut off / grinding disc's, I evan use a wire brush on my 4" grinder much quicker than using your leccy drill,,,, good luck