Kit basher's dream
Ok- so this is a paper panzer and a lot of people might not want this model- BUT you really want this! This makes a good looking model on its own- the gun shield is a little simplified but it makes a decent model overall.
This kit is an elongated Tiger 2 hull/ chassis- the kit bashing options for any number of large tiger 2 hulled projects is unlimited. This is NOT the same hull as a VK4502. This has 10 axles per side vs 9 on side for a tiger 2. PLUS the axles are spaced a little more making the hull longer too.
Use Takom #2011 305mm morser for some interior parts, a couple more shells, and the loading gear. If you leave the rear loading hatches open, you can get a good view of the interior. It might be worth the trouble to get the interior outfitted with such an interior access.