A lot of people would have given up after a disaster like that. I would have done a full roof skin swap as have done sunroof fillers and absolutely lothe them! My brother had a mk2 rallypack which he saved from Sims, problem is it had a Barge Corona on its roof for umpteen yrs[B)], we decided to re-skin the roof due to it being mangled severely, the finished job was quite good for 'yarders'!
Keep the pics rolling in, its a brilliant resto