I think it would just be a case of re routing your hot and cold pipe work under your sink. (I take it your changing your sink).
Monoblocks have the hot and cold closer together. If you can issolate the hot and cold you could possible connect with flexihose. Dependant on the tap, you may need a couple of check valves. If it's a twinflow, (the water does not mix in the tap body), your ok.
Hope this helps.
First reply so go easy with any feedback.
Ickle
May 2009