recently had the same problem yes, can relate to this, I ended up just slightly speeding up the tempo and slowing it down in the right bits and it sounded more natural for it, using cubase tempo track.
Are you expecting the guitarist to also write the riffs and come up with ideas? or will you give a guitarist fully complete tracks, I'll be interested if you know exactly what you want me to play, just so you know I am a grade 8 guitarist, so can play almost anything and sight read music and TAB...
I would use LCR panning to help with the clarity, just experiment with panning more than EQ or any fx first, it all depends on the arrangement, that will dictate the panning.
if I had this and there was no other option, I'd simply isolate the loud part and turn it down, or isolate the quiet parts and turn them up, using wavelab with editing.
I'd go with M/S recording, sounds very natural as long as your room sounds good enough, it's great for mixing the ambience in and out in different sections of the song.
I own the xpressor 500, get it, incredible sounding compressor, can be very transparent or extreme, it's great having a mix knob as well and being able to do parallel compression, perfect for mixbus and 'gluing' stuff together, it has a nice sounding attack too, very snappy, amazing in...
I like that vocal, sounds sultry, love the sidechain compression and reverb, it's possibly a tiny bit too bright on the lead vox around 10-12kHz, apart from that good.
I thought it sounds good, listening on studio monitors, only thing I noticed are that the backing vocals are a bit on the quiet side, if it was me I'd make the reverb a bit more obvious, it will give it more depth.
the vocals are definitely buried, it's quite muddy overall, needs some drastic EQ to help seperate the instruments, I think it's an arrangement thing as well, there's too many things going on at once.
way too much sub bass, not enough variation, no real climax either which is a shame. I could imagine it as background music for a game level, which might be what you were going for? there was no B section and it makes it feel like there's no climax.
I'd back off on the 12-16kHz range, there's too much harshness up there, especially on the acoustic guitars, also watch the 'boom' at 200Hz on the outro acoustic guitars, I'd probably add more reverb too if it was me, otherwise good.
'recording for the small studio' is a great book so is 'mixing secrets for the small studio' both amazing, but can get quite technical, I like them a lot.
I'd get the iD14 by audient instead, I am amazed at the quality of their converters for the money, there's an annoying guy on gearslutz who insists the UH-700 is better than the audient but I strongly disagree.