How high is the top of the bed? If it's a 2wd older Nissan, about waist high at the bed rails, you can reach more than half way. Get a cap with doors on the side. I like caps that are flat with the top of the cab so you can mount ladder racks.
We have a roofing truck that has a ladder rack and crossbed box. Granted it's a Chev 3500 dually, but still - the crossbed holds a couple of saws, several nail guns, and several (small for roofers) nail bags with basic hand tools. And Javi's truck is a wreck - not well organized at all.
I'd bet with a little organization you could fit everything you need for a 4-6 man crew in a little nissan with a cap.
We have a roofing truck that has a ladder rack and crossbed box. Granted it's a Chev 3500 dually, but still - the crossbed holds a couple of saws, several nail guns, and several (small for roofers) nail bags with basic hand tools. And Javi's truck is a wreck - not well organized at all.
I'd bet with a little organization you could fit everything you need for a 4-6 man crew in a little nissan with a cap.