I've done enough of this kind of build to know that there's always a surprise during final assembly so I'm pre-fitting everything on this one , everything you see on the chassis is assembled with Tacky glue which is easily cleaned before paint . The engine isn't complete only what can be seen from the bottom , and if you look closely you can see where I've drilled and pinned the front sub-frame with 1/16" rod . The biggest issue was reshaping the exhaust to fit the new chassis , but after some hair pulling it's done . I've already assembled and disassembled both the chassis and the interior several times and fit them into the body . . . it all fits every time so I'm ready to start painting !