Looking over the receipts I think this came from Mike Thompsons RV Super Stores in Fountain Valley. I don't think the PO had to get much on original parts. If you still need more info let me know.

Let me ask the previous owner. he did that work.

Hey I just joined the bigfoot club here. I am looking to redo my doors on Lil Bigfoot and I see you have done outstanding job on fixing yours. Would you be so kind and share your supplier for door seal/ aluminum molding and door window black molding. Thanks in advance.- Slawek. BTW is there a club or meet in Cali? I'm based in SF. Cheers.