BMW - In that case get all the trim brackets, carpet,, underfloor locker lid, odds and sods that you can.
To save you some heartache, the cage has to go out the passenger door, it doesnt fit through the rear door, neither the drivers side because of the steering wheel. (You paying attention to this Hypoboy
)
The cage may touch the header trim, its a tight squeeze, was exactly 7 years ago when I did a conversion, still haunts me with getting that cage out LOL.
It got angle grinded into nice small sections when it came out
The plywood will need trimmed slightly, for the side panels behind the seats and the door pockets in the boot. it got ditched it anorl, it's quite heavy and gives good weight reduction when out.
The HD rubber matting is worthwhile keeping