I love aluminum trailers. The problem is most folks can't pony up the $$ to get one. If you want to make bank, the best approach would be to offer: Complete trailers, trailer tubs, and trailer fenders. Then you can market to all the folks in 1, 2 and 3. I would also offer the trailer LID and make it so the lids fit the original 416 and your aluminum version. That way you can sell to everyone. the wide aluminum fenders also fit that market. Everyone needs them not many sell or make them.