For the Wild1 Chubby 12.5's, you need to replace the brake line from the ABS controller to the handlebar only. No need to worry about ABS if you aren't touching the lines to the caliper, which you do not need to do.
Looking at putting 16"s on my 2004 RKC and I read on another forum where someone else said you only had to extend the clutch cable. I've been looking at HCC (Hill Country Customs) as it seems to be by far the cheapest kit route, but I have mixed emotion due to a search on here where I read of several having problems with the chrome, line fittings and overall service.
I think I've narrowed it down to the 11 inch santee black dresser apes. I think the rise should get me over my mirrors and I can't beat the price. I can't wait to get them on. First thing I'm doing after the family vacation.