I see, is it a custom build. I didn't find any on their website that match your dimensionsThe White Vinyl Ceiling Liner is an Option and it should be listed. Absolute must have if you want a dust free interior. I boondock camp as much as 10 miles off road in Wyoming and the dust filled Mirage Trailer was horrible. I sold that Mirage for $500 more than I paid for it and it wasn’t on Craigslist more than one hour. However, the Cargo Express Trailers aren’t cheap either.