Good work crabber... Chosing what you want for rod racks can be harder than deciding on a rod & reel outfit sometimes
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Are you going to want them external, do you want them just mounted on the front of the truck, in the bed, runnning them through the rear slider (sucks in the rain) or all of the above. You'll need to know what your longest rod that doesn't break down or the longest rod period. If you're running the beach chasing moving fish (always fun during the day), you don't wan't to lose time breaking down or reassembling gear.
You also don't want to damage gear on the roof top going down some tight roads to the beaches. I can't tell you how many plugs have been found in the high brush and trees on the old road to the fisherman's lot at Wasque on the Vineyard
but I've gotten a few plugs that way before...
Do you want to do your own work? Are you worried about losing truck bed space, what if you have a livewell in the back... Yada,yada,yada...