Multi Tank + UV return sanity check

[subnet88]

Hi all,

Would anybody be willing to perform a sanity check on the below drawing for a two tank return with added UV.

The input is a 2" Slip connector
The required outputs are:

1x 1" Barbed - To tank 1
1x 1 1/2" Barbed - To Tank 2
2x 3/4" Barbed - to UV

I may eventually run my GFO and carbon off of it as well, So I have left two capped off ends for expansion

I have exaggerated lengths for piping to make them more noticeable, and have not included any unions yet.

My worry, as I don't work with pipes that often, is that I have the correct sizes of adapters, valves and other fittings.