Why not cut to the chase and hire a TW instructor to give you some dual in your own machine? that's what I did when the Maule arrived in Scotland, went down to Perth and done a few hours with Heather Hayes and was good to go, no faffing around on another type. To be honest the TW thing is sometimes made out to be a big deal, it ain't, its a far more natural and easier config to handle for TO, landing and taxiing, just got to watch out for the ground loops.