risers

I am looking for a set of risers for my 90 PD, all I have found so far is Touratech which give a 35 mm rise, but are out of stock. I was thinking maybe up to 50 mm rise. anyone have a lead or opinion?

I'm interested in purchasing the 25mm handlebar risers from Wonderlich America - PN 8161626 for my 2011 R1200R Classic. Would anyone have advice on whether the front brake line should or shouldn't be lengthened?