Another welcome! Kathleen.
I see that I have missed the original dates & subsequent events, sorry. Nevertheless I'll leave my comments and hope that you enjoy the Broads as much as I do.
Personally I would go for a Broads cruiser on the Broads.
Handling with one engine is less easy than with two but on the Broads a boathook, a length of rope and a willing, helpful crew soon makes up for that minor shortcoming.
Strowager & I have had many good natured debates on the suitability of sports cruisers on the Broads so I don't intend to extend that one, despite the entertainment value to a some, other than to say that I am undoubtedly right , a Broads boat is best for the Broads!
Sports cruisers, I must admit, can be very smart boats. Twice as many engines to maintain though! Being based at Oulton Broad the sea is on my doorstep so I wouldn't say no but I do know that my wife wouldn't come to sea with me again. Last time was rough and that was her firmly declared last time! Actually I didn't think it was that rough!