on a scale of 1 to 5 (5 being the most difficult), how difficult of a task it it to replace the rear tail light panel on a '70 Fastback ? I'm sure someone has done this one here... (hoping anyway). The only directions that I have been given so far is to drill out the old spot welds, drill holes in the new tail light panel in the same spots and then pool weld it into place. sound easy enough to me considering all of the OTHER metal & frame work that I have done so far - but just thought I would check for any more "pointers". T.I.A.