Sure, ask anything. I'll either direct you at existing threads
or try to answer to the best of my knowledge.

Looked at your system configuration and it looks pretty well.

Few comments below --

Haven't had experience with CLS0017s but I suppose they can't
worse than Dynatrons A5s or A6s.

6272s should be about as fast 6172s (perhaps tiny bit slower).

Used 6100s are also an option though I understand they may be
more difficult to obtain than new 6200s.

As G34 CPUs accept regular desktop memory you don't really
have to go with Kingstons (just saying).
Generally, the faster memory, the better (budget-permitting).
Best price/performance balance is currently offered by 1600/CL8
sticks. The only restriction is maximum of 1.5V Vdd -- keep that
on your mind.
___

One more comment.

You will want to use 16 memory sticks too -- in order to populate
every memory controller; there are 16 of them in fully populated
4p board (4 per CPU, 2 per die).

Also, 16x2GB is currently more than enough. No real reason to
spend extra money for 4GB DIMMs.