I have an Archer from Milicast, which unfortunately remains unbuilt, but I can confirm is well made and a good casting. Requires cleanup,assembly,paint and transfers.
Another option to consider is the Armourfast range (https://armourfast.com/). Although 1/72 they are straightforward to build if you want a simple model to build to populate a rake. The Sherman Firefly has a separate component to enable the gun barrel to be properly secured for transportation as per prototype. At around £7 you get 2 kits in each box. My only caveat is that I have not yet checked that they stay "in gauge" on a warwell, being slightly overscale.