Please recommend speakers

For $800, but not $1k? Okay let’s face it, there’s not a speaker in the world at your price point even near the Magnepan LRS. Those speakers are light years ahead of anything else at that price point. End of story. 

I would have also given a +1 for the Maggie LRS, but it appears size matters.

If I could take the bass from my Wharefdale Diamond 10.1s (currently back-benched) and put it into my ELAC Debut 2.0 B6.2 speakers that are in my office, I’d be able to suggest a top-notch, value bookshelf speaker with amazing sound.  Both on their own are outstanding in their own rights, but one has better bass, the other better detail and higher-end extension.  

I haven’t seen anyone recommend the Wharfedale Denton. You might try and find a pair of those on sale.

Everything I’ve read about the Dentons and the Diamond 225 is that they require space from the wall to perform as reviewed. 
 

FWIW, I had a pair of Diamond 220s in my kitchen, up against a wall, and they sounded fine but kinda dull and grainy. 
 

Rega RS1s are another good choice against a wall. And Kef Q100s (older front ported design)

OP here. Thanks again for all of the sage advice! I am definitely out of my league here in terms of budget and experience, but it’s good to get advice from those who know a lot more than me. I need to go through all of this information in detail once I have a couple of hours free. Just some general comments:

1) The bookshelf on which the speakers are placed is an open Etagere style bookshelf with an open back, so there is approximately 10" of space between the back of the speaker and the wall. Still not ideal, but maybe not as bad as an enclosed bookshelf with the speaker pushed up against the back panel.

2) The Jamo 803s which I currently have on the bookshelf are front ported, and perhaps that is why I feel that the Jamos sound great for what I paid for them (around $130 for the pair). But if I narrow down my choices to front or side-ported speakers that would fit within the bookshelf space (less than 14-1/2" height) I have much smaller category of choices. Elacs are often front-ported, but most won’t meet the height requirement. Perhaps the Golden Ear BRX would be a good choice? I haven’t seen that mentioned by anyone. The LS50s would fit in that space, but are rear-ported. I think I would likely get stands if I ended up getting the LS50s, however.  Many of the speakers on my shortlist are too tall.  The Klipsch 600Ms are too tall.  And the Monitor Audio Silver 100s are 1/4" too tall.  The Polk R200s would fit but are rear-ported.  

3) I do have a subwoofer (Polk PSW111).

@expresstrain That’s good info. When folks talk about space from the wall they measure from the front of the speaker. So if you pull them out a smidge or so you should have 20”-24” if I’m understanding you correctly. 
 

Will the shelf you use have the tweeter line up with your ears in your sitting position? This is crucial  

Rega RS1s will fit - check out some reviews and threads. If you’re interested DM me - I have a pair I’m not using.