The 9700 & 9800 are not easy to make ram blocks for because of the messy card layout, but nothing is impossible
With the
9700 Pro I had three card blocks in total, but wanted less connections and all 8mm festo for 9800 pro. In making the cooler for that I decided I'd try to make it one block for all the ram, (it's a two part block that bolts together and seals as one). Low profile backside block was so it could be used in my shuttle WC project too...
Those were made on a manual mill but you can make similar stuff on basic equipment, it's just harder / takes longer.
I personally want a 3d card block to be one inflow / one outflow, a single slot solution and cool the gpu & ram (on both sides). I'm almost there with
FX 5900 U........