http://team-xecuter.com/xecuter-diy-corona16-coolrunner-free-upgrade/
If you needed anything special, I'm sure TX would have added it here. I'm quiet sure wire of any kind would work fine, I'd say trim it to fit with the shortest wires possible to keep it neat.
I have not done it before as I only use Coolrunner rev c on Trinity motherboards as they do work quiet well, with no upgrades required, for any other boards I use the newest chip available. So I cannot vouch for it, but still, I'm sure any wire will do, as long as its not like 40awg strand, lol...
That's similar to what a CR3lite does, of course there are a few more tweaks on a cr3lite. If your experimenting that's all good, TX encourages that, but be aware that RGH2 (using CR3lite or CR) on Coronas and Phats are not too reliable and even with the upgrade you cannot expect good results all the time, even with the neatest installs.