2012 R1200GS -Longer brake and throttle cables

I am going to have to move my bars up and back about 1.5" each and from what I can tell the cables will have to be rerouted outside the fork tubes.
I would rather not do this so was wondering what others have done? For those that do route them outside the fork tubes what have you done to secure them
and guard them from wear on the forks etc. Sources for longer cables and the braided brake lines?

TIA

I went through this recently on a handlebar change for an R12R, and also didn't want to relocate the lines outside the fork tubes.

Removing the tank allowed me to relocate the clutch hydraulic line, and the stock piece relocated was long enough. The brake line wasn't long enough, and I had Spiegler make a longer one to my specs - in my case 100mm longer than the stock R12R line. I bought it through a local independent shop (which was at the same time doing some other work for me on the bike), and the line showed up on the bill as costing about $60. Spiegler's online website shows the different types of end fittings they have.

Where I needed abrasion protection, I split 1/4" clear vinyl tubing (Ace Hardware) and slipped the vinyl tubing over the metal lines.

Thanks David, great info. I think I have found some bar backs that will do what I want without having to change any cables or brake lines. They raise the bars 1.58" and rearward 1.18"

Here are some pictures of the VM bar backs available here.