AJ, I don't have any knowledge for specific Burro
cushions. My suggestion is to check your local sources. Maybe an upholstery school if there's one near by? I know a furniture upholstery would be expensive. Also, check with hot rod repair/rebuilder shops.
On edit: This is from a link posted by Carol H. This MAY be worth pursuing... Cushions and Covers from Travel Trailer Makeover
You would NEED to provide the foam template since your Burro
has different fit needs than a Boler
cushions just like Scamp
will NOT fit.
Original thread here: Re-Upholstering a 17' Boler - ??????
Best of luck!