Another roof rust thread

[corvandus]

Hey guys, I'm in a bit of a bind.
Part of me wants to get this whole thing fixed, cost be damned. What I'm wondering is, if I follow the guide and have the subframe welded back in place after treating, will it make cutting and repairing the rust lines more difficult (and thus more expensive)?

Attached are a few photos. Apologies for the Perth sunshine.
Mostly bubbles, largest cluster ~30mm. A couple have broken through the pain no larger than 4mm
1. Front line
2. Rear line driver side
3. Rear line passenger side

Thoughts and advice appreciated.

[BorepYano]

i just cut out the sections of rust on the roof; removed as much of the glue as possible; removed as much rust as possible from the sub frame and treated it; then a crap load of fibreglass to bind the subframe and roof back together; and a crap load of bog for the roof.

seems to have worked pretty well; but then I sold the car as is to Sahin, who then sold it on to some one else; so can't tell you how it's going now.

Phil did something similar, then repainted; if I remember correctly. I think that was a few years ago and it's still holding up perfectly as of April at the bonfire.

[corvandus]

Replaced the cut outs with fiberglass? Wonder how that'd go over here. Perth summers are pretty brutal.
Tempted to take it to a chap, but concerned the cost is going to be unreasonable. I'm happy to drop a grand or two, but beyond that I couldn't justify. And I love my little batmobile.

[Daniel2019]

Cut out, weld plates in.

Suggest seeing a body shop. Gotta get rid of the glue and get rid of any traces of rust and start from scratch otherwise it will end up just coming back.