Spendor s3/5 sound nice on the wall. That said wall mounting (or very close proximity to the rear wall) is such a sub-optimum position for imaging I would not spend more than $500 for wall mount speakers myself.
I'd remove any rear-ported monitors from your list due to wall proximity. (Proac, Epos els3). If you're open to maudant short then I'd also consider Mission from the UK. They make many front ported inexpensive, good sounding monitors. They also make front-ported slim floorstanders (752, 753) that are well reviewed (I used to own 780s and had to spend a lot of money to improve on them).
I'd remove any rear-ported monitors from your list due to wall proximity. (Proac, Epos els3). If you're open to maudant short then I'd also consider Mission from the UK. They make many front ported inexpensive, good sounding monitors. They also make front-ported slim floorstanders (752, 753) that are well reviewed (I used to own 780s and had to spend a lot of money to improve on them).