Since you have changed a lot of things the fluid level should be at the full point, if not fill it up.
A while back I had a problem similar, hadn’t done all the work you did, and it was the fluid level was low, very low. Something I never checked and once filled it worked great.
Have you looked at the fluid to see if it is moving around while idling ?
Also, when the engine is running and the cap is off the radiator, can you see the core of the radiator or close to seeing the core through the fluid ?
When the engine is not running, can you move the fan without slipping the belt ?
Did this temp problem start before or after the new parts ?
Last but not least is it "air bound”, hard to do but it can happen, not even sure how to fix it but maybe running the engine while checking things out might release things.
Just so you know I am guessing here, sort brain storming so these are just thoughts about the situation.
4x4, 5sp, Std Cab, Stepside, E4 Red
4” Lift - Coil-Overs, 6” SkyJacker Leafs - No Blocks (Mistake)
31 Spline FX4 Rear Axle, 4.56s and OX Locker, Hurst Shifter w/Optional Stick and "Made by Grev" alignment adapter