You'd need several things. 1. A new pump, of course you could always get a used aio from ebay much cheaper, but then you are at the mercy of its prior usage history. 2. Fittings. Good luck finding fittings for the attachment since those are not standard, but factory crimped single piece fittings. 3. Fluid. Aios/clcs don't use distilled water, but a proprietary mix depending on manufacturer. Get the wrong kind and you'll end up with gel or clumps not fluid in the tubing.
It's really a lose-lose proposition unless you have a hybrid aio that uses standard G1/4 fittings.