How about $22.51...just add a 15' (4.57 m) extension...Canare Star Quad Cable (I actually use this cable for DIY).... http://www.fullcompass.com/prod/506867-TecNec-ICOMX4-MF-15 ...I'm sure there must be something similar in Europe...
Plus a boutique cable probably would not hold up as you say " it will be pushed back and forth on a wooden floor"...better off with tried and true microphone cable, flexable and resilient.
Yea this is the smartest route I think.