I used my interior guy, Carlos (drywall and painter) for the exterior of a recent remodel. He had to replace many of the 4x8 exterior MDF panels and nearly all the trim. Where it made sense I agreed to let him use Polyester paste (Bondo). I wasn't keen on the Bondo at first but, he just finished up and it looks better than I expected. I was very pleased with his work. I can't keep him busy right now though.
Anyway, call Maureen at 682-401-4863 or send her a video of the exterior at maureengalaso@gmail.com and she will give you an estimate. She is coordinating work for him.
Nick