Best set up for rod holders I seen was at Christmas Islsnd.
There are a series of flats that you travel to.
Boats and the trucks were opened but with roofs.
Hanging down we’re just a couple of loops made out of chord of dome dirt.
Front and rear if rid hung in these loops.
Probably carried 10-12 rods.
These are pretty expensive outdits(fly rods and reels.) and it took a bit of confidence to trust them.