You can go to Amazon or better yet, find a local shop and buy there.
They should have the SHOWCASE PRESENTS the HAUNTED TANK compilation.
Has about 500 pages of reprints from the old series. They are in black and white though (to make it cheaper) and it only runs about 16 bucks. I have this and some of the other war series as well. Very good bathroom material.
Hours of reading and if it gets torn up, its only 16 bucks.