M8 you really don't want to be flying a king air on low hours.
Most of the MCC schools have king air sims for the course if you want to have a play you should be able to get access for under 50 quid per hour.
Although I can assure you after 15mins and your first engine failure on go around you won't be so keen to fly the machine by yourself.
Most twins unless you own your own have an insurance requirment of 50hours MEP. Which if you do a 55hour IR course in a FNPT 1 and your CPL in the twin you might just get enough.
MJ