Need to replace interior Bathroom and Closet Door Trim

[Docweems]

I have several pieces of interior door trim I need to replace in our 3402 RL Montana Big Sky, Hickory Edition. Can anyone tell me where I might purchase matching trim? I have looked at usual places like Home Depot and Lowes, but see nothing that comes close to matching the profile or size. I have not contacted Keystone, because they usually refer you to a dealer and I would prefer to deal with the supplier directly rather than have to put up with the usual dealer runaround. Any thoughts as to a source? Although much of the cabinet work in the Big Sky is real wood the door trim pieces are pressed fiber wrapped in vynil with printed woodgrain. It would be hard to match unless I can buy it from the supplier or manufacturer.
Thanks for any help.

Doc Weems