Hi Guys,
Any Honda off the footpath sounds good to me, don't know about the rest of it though. The engine looks to be either a 2 HP or a 2.5 HP size engine. Its a great engine for a 14 inch Scotty that's got an ailing Briggs on it. Like mine. It's a rather old unit though I must say, but don't let that discourage you. Just check out the thread on "The true testament of a Honda engine" that I put up under "Off Topics".
As far as your modded Scotty is concerned there are only two options and that is replace the lower portion with a Series II handle bar or get a set of Genuine Briggs handle bar adaptor plates which I can post a picture up in real size so that they can be copied and cost you the total amount of the two bits of steel plate.
Cheers,
BB.