Interconnect advice needed

On those interconnects, I would look for used. There are many companies in the EU that make what you want.  I just bought a 3 meter set of XLR’s for $500 that sold new for $1300 new. No box, but it lovely shape. I’m sure you could do better!

All the best.

I have used professional recording cables in my systems forever. Mogami is very good, but its shield is not quite as good as Canare Starquad - this will only make a performance difference in an environment rich in radio waves. But Canare is far harder to make up. I use Canare with ETI connectors when they will fit, Switchcraft when they will not.

Microphone cable costs a dollar a foot or so. Put the money you saved into an upgrade that will make a serious difference in sound quality. Cables are the least bang for buck IMO. YMMV

If you're not bother on China product, i recommend you try this cable.

i do have some few thousand USD interconnection cable in my system, but this China made cable really good and cheap. worth a try.

@simna you will sacrifice on cable quality with a long run of XLRs. You won’t be happy. The long cables you will get for $1000 are overpriced cheap pair of 1m interconnects. 
I have experimented with a long 15ft run of Mogami Studio Gold. Spent several weeks listening and eventually moved everything back to be able to use my 1m Acoustic Zen Absolute Copper XLRs. 
In my experience the gains you plan to achieve by moving your components and freeing up space between the speakers for a potentially better soundstage are nullified by using lesser quality interconnects. Mogami just didn’t cut it. I got much better results overall by using the 1m better cables. 
If at all possible, keep your cable runs as short as possible to be able to use the best quality cables possible. 

Forgot to recommend the ICs if you do want to pursue a longer run. Look into Audience Ohno. No emphasis in mids or any frequency range and without a doubt better than the Mogami.