I agree that the front quarter panel and 2 front doors have been repainted or replaced. Definitely would merit some inspection to make sure the damage wasn’t more than superficial.
Definitely would count on replacing the T case if i TV hasn’t been already. Ditto the transmission, but you’re more likely to identify issues during a test drive. You won’t know the T case is worn out until the front wheels don’t grab.
Newer conversion vans have certainly improved their wiring practices, but beware it won’t come close to the quality of OEM wiring. That’s definitely a conversion, not a factory wagon build.
2000 E450 dually V10 wagon