Get a Tamiya Sherman; they make several versions. They are easy to build, handle well (not as many tiny bits that can get broken off in transit), relatively cheap, readily available and are accurate enough for a non-model building vet who may not have seen a Sherman tank in over half a century.
You can probably score 2-3 Tamiya Shermans on an online modeling forum for the price of a single Tasca kit. Post a "wanted to buy" or "looking for" on Missing Lynx, state the reason you want one and you might even get one for the price of postage or maybe even for free.