New to me 66 c10 front disk upgrade question

[Chevy nutcase]

Finally got myself a 66 c10 and one of the first things I'd like to do is upgrade the manual brakes to power brakes and at the same time a front disk conversion and probably lower it 2/3 while I'm at it. I noticed both lmc and brothers have a 17" wheel diameter requirement on their kits. Cj pony parts grand slam kit doesn't mention this or any wheel size requirement but I sent an email to them asking if there is. I wasn't planning on new wheels and tires at the same time because one the 16" wheels I have are in really good condition as are the tires and two that's a husky chunk of change I'm not super keen on spending right now. Interested what other options you guys have used