The anti-cavitation plate of the outboard should be about 1/2" below the bottom of the hull. This is extremely difficult to achieve with a long shaft on a dink ...... trade it in for a short shaft .... been there done that.
Aphorisms to live by .....
If you can live with the consequences, go for it - wg
Y'am what I y'am an' thats' all that y'am - Popeye