Do it in the twin - wish I'd started ME flying in the CPL.........stick in the same one for the CIR as well.
StraightnLevel - for a PA31 endo have you tried at AF, there's one on line at AFTS. QAS (CDR) can also do them - John Eglen is the CP/CFI there (although he has been away sick a bit lately). Otherwise if you've got better than 250hr ME & a CIR drop me a PM & I'll hook you up with my mob.