Personally looking at the lengths of of cables I would go with 2 35ft cables. The reason - I have played with cable lengths and personally found that when you exceed 50% of the shortest wire I hear a slight reverb/echo sound which to me throws off the imaging and soundstage. I will admit when I first heard it (but I had junk equipt. and never heard imaging and soundstage) I kind of liked it. Today 30 years later it drives me crazy. I also ran unterminated speaker cables for over 20 years. I did strip back the wire by approx 3" every 5 years because of a slight oxidation. That could save a few bucks. Now I'm sure some will argue with me about lengths but again thats what I hear. With HT some processors will let you adjust the delay to compensate for the different lengths but thats typically a delay between front and rear channels.
Now to your question regarding cables - you are looking at approx $2 ft with 2 35 ft cables. Look for some closeout audioquest of maybe kimber 'bulk' cables. I would also look at the heavier gauge wire too with those lengths. Also if you do go with 2 35ft cables DO NOT coil up the shorter cable run (you just made a small transformer).
Depending how critical of a listener you are I (personally) find better speaker cables - interconnects - and lastly power cords will bring another notch up of detail, air, blackness, soundstage, depth and imaging. You have a nice system so far and cables is something to 'save' up for.
These are just my personal opinions. Good luck in your search and happy listening.
Now to your question regarding cables - you are looking at approx $2 ft with 2 35 ft cables. Look for some closeout audioquest of maybe kimber 'bulk' cables. I would also look at the heavier gauge wire too with those lengths. Also if you do go with 2 35ft cables DO NOT coil up the shorter cable run (you just made a small transformer).
Depending how critical of a listener you are I (personally) find better speaker cables - interconnects - and lastly power cords will bring another notch up of detail, air, blackness, soundstage, depth and imaging. You have a nice system so far and cables is something to 'save' up for.
These are just my personal opinions. Good luck in your search and happy listening.