if you do go for it, get plastic drop cloth and frog tape from lowesdepot and tape everything off real well.
outside, or booth temperature matters. i dont remember the * but if its like below 70* or something it pretty much sucks.
i tried spraycan and roll on and had better luck with the roll on, but the kind of brush you use matters - foam will break down and get into the work. stuff like that.
id get a HFT sprayer and cut it with acetone or whatever it calls for and spray it on.
i bedlinered this monstrosity and its probably the strongest thing on the car now.
tbh i POR15 d the whole thing, and POR15 seam sealed all the holes and hacks with the POR15 goop in a tube and POR15 putty.
then i hit it with the bedliner