Have u considered the Britten Norman BN-2A Islander... awesome (if noisy) wee machine! If it'll fit in the door the wee beastie will fly with it. In real terms they're an accountants dream to operate. Only number you need to remember is 65KIAS -everything happens there, except the cease and desist committing aviation speed of 39 KIAS (incidentally also Vmca) and exceptionally reliable.
Worth a look, certainly far more so than the P68 previously mentioned