I have owned, Magnapan MMG, MG3.6 with Mye stands, Klispsh Lascalla and Cornwalls over the past 10 years.
First off you dont need a lot of power with the vintage klipsh SET to 30 push pull is fine. Lascalls are more punchy while Cornwall's more balanced and smaller. They both can image well if properly placed and bass punch is outstanding if the high end bothers you, their are plenty of cheap fixes, parts for the x-over (easy install) dampening the horns (again easy).
I would say if you can get the klipsh for under 750 its worth a try then find a dynaco st70 for under 500.
If you really want to experement wait for Cornwalls with a 2a3 or 300b tube SET amp Its magic
Magnepans are great, but they do not have the impact of the klipsch. As someone said apples and oranges/