Have you considerd jet impingement-based direct die cooling, the heat spreader shoild be thick enof for small cups and with 24 jets it shoild work vary whell?
sorry jaydee I mised it,
"My orginal plan was jets with a center inlet but not enough room for an outlet."
an off center inlet woild be just as good.
Man got to read the hole thred before posting, I have akses to a mill and some drill bits down to .35mm to I may just try this but not on a cpu,I'll get a pice of aluminum and put an a cople power resistor as a heat sorce, 150w shoild do.