What will I have gotten myself into?

[MapisM]

Quite correct.
Besides, for King Cobra outdrives, there would be difficulties in finding spare parts, since OMC went belly up.
And Steyr diesel + K.C. doesn't sound like a "tried and tested" combination...
BTW, unless the picture is an old one, that's a great camouflage of a King Cobra in a Volvo !