Company B has 2 variants of the m3A3 available in their webstore. Go check it out.
From the release:
Companyb releases their kit for the M3A3 Stuart (Stuart V) This kit has a detailed interior and options to build either the standard Stuart tank, or the Recce version armed with .50 and .30 cal MG’s.
The kit is fairly straightforward, with a single piece hull (detail is cast on) turret, optional hull tops and metal tracks.