Agree totally re the paint issue. We had our Clipper 34 two pack repainted about 5 yrs ago, and it still looks as good as new gelcoat. As to the fire damage…I suspect it it was not heated enough to burn, it is probably ok, but a good sand back before re-painting the area would allow that to be checked. However, even if damaged enough to need repair, it need not be a deal breaker if not a large area. Fibreglass composites are so forgiving in that respect. Just consider the Volvo round the world ocean racing boat, Vestas Air. It ran aground on a coral reef and they are repairing it right now to get back in the race.
How to Repair a $6M Racing Yacht You Sailed Into a Reef | WIRED