Yup, your X7DVL-E uses the dreaded 771 mounting holes. (High res photo
There are 771 water block solutions. The cheapest is Swiftech's Apogee GT with the AP-NC604 771 back plate adapter... provided they still sell them, can't even find them from any retailers; just on swiftech's website.
They also make their new line of XTL's that should be compatible with 771 with the updated bracket (AP-XT Mutli-mount HDP)
You can also look at XSPC Rasa with AM3 kit (supports socket 604 xeon; same as 771) and unlike the above solutions of the availability, this should be in stock from frozencpu retailer.
As for ram, I wouldn't worry about them; They are suppose to work up to 85C.
Honestly, if you just keep the cpu's at stock speeds, you could just bypass the idea of using a coolant reservoir provided you use a decent radiator, good fans and a good pump. Any 2 fan 120/140mm radiator should easily dissipate 2 130w cpu's with little effort. Pair it with some quiet high CFM fans and your golden. Koolance, Swiftech, Black Ice and XSPC makes some good stuff for around $50-60. Swiftech makes some nice radiators that have built-in pumps that work pretty good... of what I've heard, but most will still tell you to separate the radiator and pump considering you don't exactly need to save the space in your case.
Everyone I know doesn't recommend EK blocks, they aren't as efficient or hit a good price/performance value. Unless you get a good price for them, stick with other good brands like I listed above, as well as danger den and Heatkiller products; they make some good shit.