The Blackhawk will bolt to a Bravo gimbal but it isnt so simple. The Blackhhawk needs a lot of rocker and a high X dim to feed the props. That was the demise of an otherwise great drive, most manufacturers would not go through the effort to re tool a mold and limit a boat to only a single choice of drives. On a single it works well with rounded keels like older Cig 20's and the Donzi Classics. If you do decide to give one a try dont be discouraged if it doesnt work right out of the box. They have to be run high enough to keep the bullet just out of the water when running, thats where all the excess stern lift comes from otherwise. All the parts are interchangeable with the Bravo III with the exception of the vertical shaft i believe but i have heard Teague may be making them. I dont, however, think buying an empty case would be a good way to obtain one. You will have a fortune in rounding up all the parts when you can pick them up in the $3500 range.
Donzigirl were the BH Donzi's you rode in factory Blackhawk Donzi's? Just curious because i have had much the opposite experience with them. I went out in 22 BH Classic that was a heck of a boat. actually was the first dual prop boat i had the pleasure of running. Was at the dealer we use to have here in Toledo, i did a bunch of work for them back in the day.