Bob, here is the tool list from an article a friend of mine wrote after tackling the job on his own TR3A:
<span style="font-family: 'Fixedsys'">Some tools needed:
Air driven nibbing tool (Harbor Freight)
Air driven cut off tool (HF)
Power wire brushes
Dremel tool (Sears) with cut off wheel, various grinding bits and little wire wheels
Air impact chisel ($10 HF)
4 inch disk grinder (optional with above tools)
MIG welder (don't try gas welding)
Big can of PB Blaster
Strong putty knife.
Electric drill and bits.
Nut breaker
Body work dollies and hammers
A friend with a floor lift is a Godsend (Thanks, Jon Paschke)</span>
If you would like the entire article (PDF format but only about 16kb as there are no pictures), PM me.
I would certainly advise trying to pick up at least a little experience first. Pick up a fender at the local "Pick Your Part" junk yard, cut off one side and weld it back. With luck, you can also use it as a source of sheet metal for the small patches you'll probably wind up needed. I'd offer to give you one, but shipping from here would likely be more than it's worth.