Mine just has a 3/4” emt B pillar holding it up. It flaps around some, but between it and the half doors rattling, I just tune it all out lol.
I’m sure I could get it tighter if the straps weren’t going around the seats but I don’t drive it much...
The material is quite thick, some kind of heavy marine vinyl. My 40 has a MetalTech Jackson roll cage with center bars between the A and B pillars, so I couldn't say about the potential sag. It does flap a little at highway speed.
Go into a boat cover shop with your old one and they should be able to make one for you.
Looks like this place in CDA does upholstery services.
https://hagadonemarine.com/upholstery/
Mine is a Spector also; it came with this truck when I bought it in 2008, and is still holding up well (though I don't use it all year long).
It's a gray color though - don't know if they have an olive drab option.
Hey looking for a few suggestions on a new bikini (bimini) top. I have an older OCD that I love and looking for a similar one made out of that heavy Cordura style material and that I can get in army green color. I’m just trying to stay away from...