Difficult to find RV Bed Sheets

I am looking for the same thing that a lot of you are. Plain white linen sheets in 800 to 1000 TC for an RV Queen mattress that are affordable and durable. No Egyptian cotton, it's too soft and has no body to it. I also don't want the thread count TOO high. A very good friend bought me a set of sheets for a present. They were 1600 TC linen sheets. Those suckers would nearly stand up by themselves, and were so heavy and thick that it felt like you were sleeping underneath a canvas tarpaulin. I know she paid a fortune for them, but I only used them a few times before folding them up neatly and packing them away forever in the back of the linen closet like a good hoarder should!

(ATTN: Camping World!!! We have you a potential money maker here!)