Is there a mechanic in the house?
Considering the engine is central to the theme of the scene, it probably wasn’t the smartest idea to start with such a low quality kit. The Maquette kit wasn’t considered good enough when it was first released so time and advances since haven’t done it any favours.
The soft details and missing parts are not the biggest issue here either, as not a lot can be seen through open hatches. It’s the lack of compartment, which would enclose everything and also to stop light leaking in from where it’s not wanted.
The kit includes a very rudimentary frame on which the engine block and transmission sits, but I added a few small bits a pieces to fill out all the empty space. I also have the Verlinden “T34/76 blown up rear end” which allowed me to make a rough copy of the firewall. I also added panels between the engine and transmission, which resemble some reference images I found online. I considered briefly making some further details like the internal suspension channels and fuel cells, as well as some other missing parts, but considering what will eventually be visible, decided against it.
The parts went together well enough, and I added some simple wiring and plumbing that will be visible. Dry fitting and making sure all parts fitted snugly and still allowing the upper hull to be placed unhindered took the most time.