This doesn't 'legally' apply to PVT ops (I think), but most aircraft of that capacity will be turbine and will usually require 50 hrs ICUS + Base check + Line check for insurance requirements..
Might be cheaper to charter it in stead or wait and get a job flying the machine you want to hire.
Alternatively, can you get a mate to fly another PA-31 / C404 etc and fly it with two a/c in stead? That will allow you the baggage space with room for fuel too
