hello there.
First of all, depending on what you want to do later, there may be no need for the ME to be kept current. - If your goal is a multicrew aircraft, all you will need is the multi IR to be current, and for this an FNPT2 is sufficient. Maybe a few hours of a simpler (and cheaper) sim thrown in before.
If you do need the ME too, then may I suggest bemoair.cz (I have no affiliation - just a happy customer). Their L200 Morava is well maintained and one of the cheaper options of flying a ME aircraft (I think it was 220 Euros / hour all incl.). Of course their instructors are JAR.
And on your way you can do your medical class 1 renewal, no appointment needed and 55 Euros (this January, when I did it). - All the info is here on this site.
cheers, IP