67 Barracuda Bucket interchange

My bucket seats in the 67 barracuda are a bit raggedy.
Couple questions....I know I could get new foam pads, and covers. Expensive. The seats themselves are fine.
Does anyone know what seats from a pick and pull would easily fit on the existing tracks? I am not picky about keeping it stock.
Or a good suggestion for a cheap replacement seat cover that just slides over?
Just trying to figure out the cheapest way to handle it.
ANy advice appreciated.