what amps/subwoofers are you using for Magnepan LRS?

no, but great article
another winning combo referenced with the schitt monos

First system with the LRS was a Conrad Johnson PV10B with Muse 150 monoblocks.  The bass was lacking, I added two REL T5i and was satisfied.  Easy to blend in spite of all the nonsense about how "hard it is" to do that.  Placed the subs directly behind along a side wall with the speakers about 3 ft off the wall and toed in with tweets outside.
Second system with Bryston BP20 and MPS-1 and 4BSST.  No subs used.  Placement in a big room used an alcove to create two corners.  Bass satisfying enough.  OK it's not 100% integration with the subs but close enough.  Use your room if you can. 

Bottom line just buy Bryston IMHO although the tube preamp was sweet with them.

I'm just ordered a martin logan 800x which is small, sealed, cheap, and has speaker level connections, can also be run down or front firing and I think as room correction also
I'd like to find a matching amp that I can get for well under hegel money

I’m in the market for an integrated amp in the $2k-3k range, and a couple of weeks ago I spent an hour auditioning the Rega Elex-R and the bel canto C5i, each playing on the Maggie LRS without a sub. That they were playing on LRS was purely a coincidence, but it’s relevant to your question so here you go.

Of the two, I preferred the Rega. The bel canto probably had a bit more clarity and perhaps imaged a little bit better, maybe a little more revealing and maybe even a bigger soundstage, but I thought the Rega was more full-bodied, had more layers to the sound, had definitely better bass, and just had more of an analog sound that I preferred.  I just connected with the music better through the Rega I guess. I was listening to Buddy Guy (blues), and the Rega dug deeper and sounded grittier, which is what that style of music calls for to my ears anyway. The room was a small listening room and listening to CD (Rega CD player), not sure about cables.

I’m not sure if it was the Rega’s class AB versus the bel canto’s class D that gave it the fuller-bodied gritty presentation that I preferred, or something else.

OP
I have been happly running a ML Dynamo sub with my LRS for months, I truly forget it's there. Talk about painless seamless integration.
Amplification is bigger dough though, using an Ayre EX 8.

The ML should be perfect for you IMHO.