I purchased a Flambeau Rod Bunk Box after black Friday this year for around $35. I love it, it is not as heavy duty as an otter box, but I am not throwing it out the truck at 55 mph either.
it fits 3500 plano boxes in the slots
the Clam spoon box (can’t remember the size) fits perfectly in the middle
I can put my recon camera in there too.
I have had 7 rods in there, but 5-6 is more comfortable
I bought it for the rod protection, but the gear organization has far exceeded my expectations.
X2 on the Flambeau Bunk Box. That is what I use to store my Ice Fishing rods and in the summer I use it for my open water rods.