Looking for experienced knowledge/opinions

[lil magoo]

Hey all, new to the forum here and this is my first post. I have however searched this site multiple times within the last 2 weeks. I picked up a 65 C10 2 Saturdays ago and the first thing I am going to do to it is the suspension and brakes. Looking at doing a 3/4 drop and making it handle well while having a good ride for an old truck. This truck will be driven a lot, and I'm sure I will push the limits on it a few times.

The parts I am looking at include:
CPP power front and rear disc with the 2.5" drop spindles
https://www.summitracing.com/parts/clp-6366frbk5-bb
CPP deluxe lowering kit 1" spring front and 2" spring rear
https://www.summitracing.com/parts/clp-6372cssk-d
2" rear blocks
https://www.summitracing.com/parts/clp-cp4-2
QA1 front and rear sway bar kit
https://www.summitracing.com/parts/qa1-52898
18x8 US Mags Ramblers up front and 18X9.5 in the rear
and I'm looking at a set of 255/45r18 bfg comp 2 tires to run on each corner
https://www.summitracing.com/parts/bfg-15054
I will also be ordering axles for the 12 bolt thats in it to convert to 5 lug, but, I want to pull the current axles out first and get some measurements before i order. Where would you buy the axles from? (CPP, Moser, Strange, ect.)

Do any of you see any issues with anything on my list or have any feedback on any of the parts? My truck is a short bed step side, I looked through 5 pages of search results, I would really like to run a 275 tire but it seems some people have issues with rubbing or needing to roll the fenders. Am i correct on this? The 18x9.5 rears should have a 4.5" backspacing also if I am correct but what about the 18x8's on the front?

I appreciate all the help and info.