i know you know a fair bit about water cooling aspire.comptech, which is why i am wondering your reasoning behind criticising an aquarium pump?
aquarium pumps do great for watercooling and i know a lot of pros that use them. though i can understand why you would complain about the pump here
. as for home made blocks, i reasonably made one can perform quite well but obviously not as good as a decent manufactured one. the set does not seem to be in very good condition. you'll have to clean out the blocks, pump and maybe even flush the radiator. you'll also have to clean the surface of the blocks. for $40 NZ though i guess it's alright.
the blocks seem to be for Socket A which means you don't have the greatest of chances for getting it working on an LGA board unless you're good enough at modding to create some makeshift mounts.