A kombi box will handle the bower if you don;t drive stupid. Kind of like putting a Lexus V8 in a Suzi.....
the 091 Box is the best fit and strength out of what you have as easy options and it fits in without to many issues. Does your buggy have a lift kit ? If not with the body you have you may have to clearance the glass a little at the back as the kombi box sits higher. Custom Vee Dub (
www.customveedub.com.au) do a kombi transmission kit which ie very good and has a front and rear strap included. I have one of their kits in my Buggy which is running an EJ 22 and it works sweet. I also had one in my Baja which was running an EJ20T and it was fine. I blew a few box's though with the 33" rear tyres and weight which was closser to a tonne.
Wes is running a kombi box with his V6 and no issues to date, it all comes back to how you drive.
Brad
Why copy when you can own an original ?
Meyers Manx Australia