I've rebuilt my T-18 for production in 1/285 scale for 6mm gaming.
It is tiny, really teensy-weensy. It comes out at just a fraction over 15mm long.
How much of that rivet and panel-line detail will show on the printed models, I have no idea. There will be some, but it's difficult to predict.
The guns look idiotically stumpy and humungous, but in fact they're only 0.6mm in diameter.