Best location setup of turntable

I am considering relocating my turntable closer to my speakers. Right now it is on the opposite wall, but it is nearly a 40 foot run of speaker cable, so I have to go cheap on the cable (monoprice 12 gage cable). By moving it closer I could use better quality 8 to 10 cable (Kimber - black and gray braided cable).

I have concrete floors and plan on leaving it on a floorstanding rack, since very little if any floor vibration will transfer to the stand...but by moving it closer to the speakers the base may cause more vibration. So it's a trade off, better cable but closer to the speakers for shorter cable run and better quality cable.

What do you all think? What would you do?

check out Machina Dynamic Promethean base. This would allow you to put it back on top of the rack

Many good advice.
Thanks.
I thought a pillow cover filled with sand would be as good an isolation device than any other, but I guess I was not right?
Aagin, my living room is wood floor. Among isolation platform (by nimbus or similar), wall mount rack (by Target or similar), and isolation pads, which would be best, per performance/price wise?

An inexpensive pneumatic isolation system can be made by using a bicylce tire tube (depending on size of your tt an 18x1.5 or 20x1.5) and plywood board (1" or 3/4" and big enough to fit under your tt). Place the tube on your current stand-shelf, the pywood on top of it and the tt on the plywood. Inflate the tube just enough to raise the tt - don't over-inflate. A short straw or tube placed between tube and shelf will prevent a resonant air pocket forming in center area of tube.

the tt should be on a heavy solid rack and then isolated from the top shelf. if you have a wood floor you place the rack 4-6 inches from the wall and using a wood braket attach the top or second shelf to the wall. both the wall and floor vibrate at opisite times so they will cancil each other out. there are many isolation shelves out there use the heaviest you can afford. the weight helps to cut dowm sound wave vibration and isolaters stop the vibration from the other equipment on the rack. i do not understand the wall shelf. the walls receive the largest amount of air wave vibration, plus even the best wall shelf is FLIMSY at best. carter9000 move that table behind the speaker using the rack system described, you want it as close as you can get to phono and line amps. VIBRATION is what it is all about, everthing in music is created and destroyed by vibration, the entire high end is based on controling vibration.