folding shotgun stocks

i had top get rid of my atv gun case and the case had alot of wasted space. but i still need to cary a shotgun. so i'm thinking of making a case out of pvc pipe and mounting it to the back of the atv rack but i'm about 2inchs to long and i was thinking of a folding stock or or one of those adjustable pull length stocks but then i have to change my forearm there more money i done want to spend. only got 2weeks to get this done. anyone have one or any coments?

Um, what kind of shotgun :\

remington 870 marine

White PVc Sewer hose might work. You can get caps, screw on head etc. from plumbing supplys. Not sure what the inside daimeter is for packing etc but they come in 20 ft lengths. It would all just glue together with plumbing cement.

Was that a joke?

You can buy LEO top folders for $50-100.

I GOT OUT THE OLD SQUARE ANd did some measuring
the case i would need to build is 6hx3wx40L i looked at a piece of pvc and put it up to my quad and it looked awful way too much wasted space from being round i need a rectangle piece . i'm thinking that i might make a box out of wood then cover it in fiberglass . i was looking at one of those stocks that would slove my problem with the length sure looks nice.