OK so TX 120 or 240 sounds like it will work, you'll still need to fit a pump.
Can you measure if this will fit? https://www.alphacool.com/shop/ausgleichsbehaelter/pumpenaufsatzbehaelter/24196/alphacool-eisstation-40-dc-lt-behaelter
Or maybe add a CPU pump block in the loop...
The 2 cases you've stated has no room for any radiator to be inside. You'll need a radiator to cool the waterblocks.
If you must use those cases, you can drill a 20~22mm hole and insert a fill port. Try searching 'G1/4" Fillport Fitting'.
You can then connect an external radiator such as...
AFAIK, Meshlicious doesn't officially support Mini-DTX, or is subject to change. Or maybe change the motherboard to something like X570 or B550 Strix ITX?
I'd say wait for meshlicious to release or get an NCASE M1.
Depends on which use case you are planning. If your need it for Ghost S1 or similar sandwich layout GPU waterblock and willing to use Alphacool 7.6mm/12.7mm hose,
TPV 90 degree fitting and hoses. (Although the compression cap may get in the way....)...
I'd suggest doing reservoir-less, using a CPU pump block combo.
with DDC there's only the Swiftech apogee drive II, but there's 2 prototypes being developed.
https://smallformfactor.net/forum/threads/freeflo-48mm-cpu-block-pump.9837/
and...
yeah, don't bother with the lesser pump if it's not compatible. My guess is that SPC pump impeller is not the same height of DDC.
I'd suggest going for only DDC/VTX compatible top.
I guess it's true, but if they're the same price and after some reviews, it can be worth a try.
main advantage I'm hoping is the 11% minimum duty cycle. My DDC pump is a bit noisy for my taste...
@Nouvolo will you try with the new VTX pumps from EK? I think you could get better results if you can manage to source their pumps in bulk.
https://smallformfactor.net/forum/threads/ekwb-vtx-pumps.13058/