some interesting models on this site both WW2 and cold war
https://www.shapeways.com/shops/kampfflieger?section=1%2F144&s=0&page%5Bnumber%5D=1&page%5Blimit%5D=48&page%5Border%5D=asc
https://www.shapeways.com/product/4RRWWC7EL/1-144-m76-otter?optionId=61492216
https://www.shapeways.com/designer/kampfflieger
https://www.shapeways.com/product/UBYMXM4LG/1-144-einheitswagen-hkp-606?optionId=62776861
I have quite a few Shapeways 1:144 minis (and many 1:600 aircraft), and while they're good to fill in gaps, they have... issues... Get the FUD (Frosted Ultra Detail) versions, despite the price, and be prepared for some odd printing artefacts on slopes & vertical surfaces (vertical to the direction of printing, which can be odd at times)!
However, there are a few interesting additions there I may look at.
Someday, someone will make a KV-13...