Basically, I bought a LiqTech II 240, machined the CPU block to be able to clear the socket when using the bare cores on the block, and replaced the radiator for an all copper 240mm/45mm radiator from alphacool. I also replaced the fans with two noctua industrial ppc 2000.
The reason is that my case is a ITX Ncase M1 and the space is quite tight, so I needed a cpu block with some very specific characteristics to be able fit a 45 tall radiator, namelly, the cpu block height must be small, must have an integrated water pump and the hoses must come from the side instead of from the top of the block. The one from LiqTech II has all this plus a 450l/h rating ( that I found out is false, the true rating is 60l/h )
I made some videos of everything, including the deliding, but I am struggling to get time to actually edit all the stuff and put it on youtube. Anyway, the deliding and bare core on block did bring my cpu 18 degrees celcius down but I'm still unsure if it is worth the effort, or even the risk.