Actually there are quiet a few "companies" that make 1/35 scale and others resin kits designed for the table top wargame, also seen a few white metal kits out.
Those usually are only sold at japanese events and kit shows though.
A few companies did resin conversion kits to allow you to build variants that Nitto never released, looks like Wave got the ball and is issuing now from time to time plastic model versions of those kits.
The 1/6 Soft Vinyl Kits are also nice and make a good display/conversation item, not sure if the Clint Eastwood replacement heads are still available though.
I also like the kits as they tend to have few problems during assembly and great conversions can be done with them.