bonanza find at mansfield mass swap meet

Picked this up 2 weeks ago. I recognized the wheels and the frame looked like a scout. cost was very reasonable and it runs. The engine is a hybrid of parts and the brakes do not work well. the tires needed 2 tubes which i did today and i got the brake pads on order from OldMiniBikes. the seat might be original but is held on with duct tape. any bonanza guys that want to weigh in i would appreciate the help. Still not sue what model it is because of the forks. can't find a bonanza picture with those forks.
i saw the old thread on this same bike the mb300 had different jackshaft mounts according to the brochure ad. It looks just like the mb1110 in the old thread. thanks again.