Final update and many thanks for all the support here
This is far more computer than I needed but it was fun to build, tweak, tune, etc and since I do not game it is very quite sitting on my desk though when I finish the remodel in this part of the full time RV it will be on the floor under the desk.
Case, A4-H20
Motherboard, ROG Strix B760 (I have a Z790 but went back to the B760 as more than enough for my use)
CPU, i5-13600K
GPU, Gigabyte RTX 3060 Ti Elite, 2.5 slots, triple fan, deshrouded, 2 Silverston SF 120mm fans blowing up, controlled by GPU (was running MSI Ventus 4070 but it was more than I needed) GPU is also facing up, under the fans, top of the case instead of using a 240mm AIO there.
RAM, 2x16 G.Skill RipJaws 6000
Drive 1, 2TB Samsung 990 Pro
Drive 2, 2TB Samsung 990 Pro
AIO, Corsair i115 280mm AIO with two Silverstone SF 140mm high dynamic pressure fans. Side mounted, perfect fit.
Power Supply, Corsair SF600 with Noctua black fan, grill removed, mount opened up, far better air flow.
Riser cable, low cost Ebay one, works just fine. 300mm, Gen 4, stock riser was just a bit to short.
Thermal past MX-6
Filters, nylon mesh for all air intakes, other openings sealed off except exhaust.
Notes:
There is a gap above the radiator about 20mm tall the width of the case where air flows into and up to the GPU, there is a diffuser above the AIO to separate the air flow to it.
SF600 stock cables are great, much easier that ribbon cables and I cut off all
not needed extra connectors and wires which made for a cleaner install and better air flow.
I bought several honeycomb grills I was going to embed into the case covers for better air flow but just do not need it. When running stress tests the fans got quite noisy with the stock mesh case covers installed, taking them off made a huge improvement. Now I am not doing any testing nor gaming I am just going to skip that rather arduous step in the build.
I built this computer with mostly used, highly discounted, etc parts and have under $1000 USD invested.
Thanks for all the support here, greatly appreciated!
Rick