[Eliot Ness]

Did I bite off more than I could chew with this thing or will this actually be easier to work on than my Eveready was?

That's hard to say, but if you do a search on "Atwater Kent Model 46" you'll find at least one thread on the other forum about replacing the capacitors and dealing with the power pack.  In the mean time here are a couple of diagrams you might find useful:

http://www.atwaterkent.info/TechData/Dra...100sch.pdf

http://www.atwaterkent.info/TechData/Ima...06_070.gif

I don't think it would be more difficult than any other AC TRF from that era except for melting out that power pack, and you might not have to do that.