Are you the same guy that tried building a wall awhile back and lost his fukking mind in the process?
Yes, I recognized the name too.
Slo ride........unfortunately......yes, that was a not so great time of my life. Things are much better now.
You say that and then proceed to "ready, fire, aim" on another attempted build.
but I've got a 250 amp ho alternator with three runs of 2/0 for power
Absolutely unnecessary since one run of 2/0 would be more than enough to carry everything that alternator can deliver but more certainly won't hurt and hopefully whenever you switch vehicles you can salvage the cable to use later. The Batcap is a solid battery, you did good there, but it seems to me you're still nowhere close to the electrical to properly support 8KW amp.
There was a member here that used cheap particle board for a wall build and resin'ed the fuckk out of it and it ended up being very successful.
You're probably thinking of me, and it was OSB that I used. One of the loudest daily drivers in the northeast uses OSB and according to a reliable source yes, even particle board + resin will = MDF + resin on the meter (all things being equal). Later someone over at SMD forum did some flex testing and found OSB to actually be the most rigid material out of several types of plywood and composite boards. I will say it is a colossal pain in the arse to build with and I used epoxy resin and not polyester (fiberglass) type. If I were to use OSB again I'd still use ply or MDF on outer layer to keep things smooth and easier to shape/round and I absolutely would not recommend it if you're not very comfortable with woodworking because I repeat, it is a huge pain in the arse to work with.
Anyway, please tell me that those are identical 95s apart from the obvious different dustcaps. And the "DD box" ratio should be used. Please, OP, for the love of God, before you pull a nutty and trash another box step back, slow down, post some pics, and get some feedback. You have done several already that were probably salvageable with some tweaks and care. Do not go throwing more money at stuff you may or may not need on a box you may or may not keep... for example blowing 50$ worth of resin on a box that doesn't work; that isn't going to fix it if it's not working out but it will improve an already good box once you have a keeper.
These guys that are posting big numbers with not a lot of gear get there from a lot of PATIENT testing and tweaking.