In the future I would like to set up an AM station for the low bands
(just 160m, 80m, and 40m) and am doing some research as to what
equipment I should be looking for.

What I use I think is awesome. Heathkit DX-100 (not the B version)
and a Collins R388 housed in a matching DX-100 cabinet. The two
make a 'pair' that way - the R388 fits the DX-100 case exactly, and
they look terrific together. And the AM quality of the plate modulated
DX-100 beats any of the smaller AM rigs out there. Also makes
a fantastic CW setup, and the R388 is a very delightful all-wave SW
receiver to boot.

That's my vote

Dave WB7AWK