Thanks Guys for ther nice comments.
Its a "Bluetank" kit, which I believe to be a copy of Nitto´s.
I replaced the tracks with AFV Club´s indy tracks. If you use the vinyl type, you need 1.25 lengths per side. With indys, 1 box will do, but there are not enough pads to fully complete the run on the bottom .. not needed here. So the price remains the same. (I bought 2 sets of indys thinking both were needed, but not so ... if anybody is looking for a set ,.... contact me I have a set for trade) I painted and weathered the tracks first... which are excellent and real working tracks ... and then superglued the vinyl pads to them. A filter or two over ties them in nicely and no difficult painting here. Probably the best indy tracks Ive ever used.
I also used Airwaves PE, which is pretty useless. A sheet of grill PE and scratch the other little items will look lots better.
I replaced the nylon thread for the lift at the back with junk-jewellry chains, which added a lot.
The rest is OOB.
Im sure AFV Clubs running gear set, would have been a great improvement again, but 2 sets would be needed to cover the extra wheel, which would end up being very expensive. The sprocket needs some re-shaping to fit the AFV tracks, so maybe even a tamiya M41 for spare parts would be an improvement.
The base is a picture frame built up with styrofoam, andthe plants are plastic or aquarium plants.
This is the figure for the vehicle in progress! Its Legends Vietnam US tanker. I´ll add him in when finished.

Thanks again guys!!