Thank you for the detailed explanation and diagram as it makes answering questions easier. Any speaker is compatible with any receiver assuming it is not below the rated impedance.
The R-14s are bipole speakers. This means that there is one woofer and two tweeters firing in phase in opposite directions. The idea behind this is that instead of direct sound being aimed at the listener, the sound is diffused throughout the room and is reflected off of the walls (and to a lesser extent, the ceiling), essentially making the surrounds less localizable and more enveloping. This works well in a large room with multiple seats but personally I would stick with dipoles. If you want to stick with Klipsch, the R-14m would work well and can still be snagged off ebay or some other sites for $99 a pair. Considering the seating (I am assuming the bed) is up against the back wall I wouldn't place any speakers directly in the back.
How high is the wardrobe? Does it extend to the ceiling? What speakers are being used for the fronts? I see a few options that would be better here. If there is at least two feet between the wardrobe and and ceiling, the surrounds can be placed either on the wall or on the wardrobe (preferable if using ported speakers). I would angle them slightly down. The second, and possibly wife unapproved option (but most ideal) would be to place the surrounds directly to the sides of the bed up against the back wall and as far apart as possible on stands. The third option would be rear corner placement, either on wall with a swivel mount or on stands angled at about 45 degrees butted up to the corners. For the second option, the wardrobe could be moved about two feet away from the back corner so that the stand and speaker was out of the way of accessing the wardrobe.
The surrounds should ideally be placed two feet above the listening position to expand the sense of envelopment and to reduce localization by keeping the tweeter off axis. Some might disagree with me but I find horn loaded speakers such as the klipsch to be fantastic for wide dispersion of sound in a small room. I'm currently using Klipsch KB-15s as surrounds in a small bedroom (12'x12') about 5' away from the listening position and about 1.5' above ear level and have no problem with them sounding too directional.
Another question, is the subwoofer under the bed to keep it out of site? I would recommend placing it in the corner and being careful to properly set the distance of the speakers and the sub in order to avoid phase issues considering it's in the back of the room. Placing it in the front right corner may also yield better results as far as it blending in better. Just speaking from experience trying to set up a system in a small room.
If you decide to go with stands, I would highly recommend these
https://www.amazon.com/VideoSecu-Adjustable-Height-Satellite-Speaker/dp/B000VRREPG/ref=sr_1_1?ie=UTF8&qid=1483541788&sr=8-1&keywords=adjustable+speaker+stands
The poles extend to 47" which is perfect for getting the proper height for the surrounds, they can also be angled and rotated in pretty much any direction and are great for holding bookshelf speakers that are too large to be mounted on one of those satellite speaker stands.
