I would seal it up. I would contact the dealer and discuss and send him the photographs. I would ask him to supply the sealant and ship via UPS. An unreasonable person (perhaps even “dishonest”) is going to shift the burden on you by demanding that you return the unit to them.
I do not know how far “out of state” the dealer is from you, but if you have to deliver to him, it would probably cost you more than the sealant. An honest and reasonable dealer would work out something with you and not take advantage of your being out of state. If he is not willing to send you the sealant, then the question for you will come down to which cost you’re willing to pay verse principle. Hopefully, you can work something out.
2012 Rockwood 8314BSS
Camping, Dutch Oven Cooking, and Homebrewing