the more hours you can do on the A/C the better, obviously money permitting.
one thing i will say is that you can do a much better course at Wycombe Air Center, you do the CPL on a Beach Sierra then MEP & IR on Beach Dutches which offers a natural progression from CPL to IR without over complicating your CPL with more difficult checks in a twin.
One thing i can say is that a multi CPL is no better than a single CPL, its the IR that matters!!!