AC Sanden Fittings onto Denso Pump

Had a search online but cannot seem to find an answer. Have a 1998 D2 TD5 project which at some point has had an engine swap to P15 or 15P. The AC hoses have been left unconnected and I think from the fittings on the hoses it looks like previous AC pump must have been a Sanden opposed Denso which is what's on it now. So to plumb the AC whats the best route to go ? Change the pump ? Change the hoses ? Can I buy a fitting which will enable the Sanden fittings to plumb into the Denso pump ? The latter seems the simplest option and the preferable option. Any advice appreciated.