Here are some very good reasons why you should do a bracket!
1. Less wieght to horse power racio.
2. When adding a bracket you can strenthing the transome so its bullet proof with 6 or 8 strait transome saver type brackets.
3. better fuel consumption for running offshore.
4. speed..... Now if you get caught out there with some heavy seas and you need to get home in a hurry if lets say the top speed on the boat with twins 100 hp mercs lets say You should do about 55 to 60 mph In ruff seas you should be able to do about 25 or 30 if you add some extra wieght and fuel upfront so she dosent pound!
5. Fuel consumption.
6. With twin ob you always have another motor to get you home in a hurry when your offshore. Its much better then a i/o or a single outboard with a kicker. On my sea nymph I have a 8hp kicker that I choose because of wieght. But if I where offshore in heavy seas my 7 mph ride home would be very scary especailly if the inlet where ruff in a oncoming seas i might be in trouble.
And just think of this with twin 100hp 2 strokes you would prob be able to plane on 1 motor and do about 30 mph on just one motor. Better then limping in like I would have to do with me sea nymph!
When I rebuild the sea nymph I have been debating to go with twin 70 hp outboards for stability and this exact reason...
If you want to do this boat right and want it to be a real offshore center console outboards is the way to go. Even if you did 1 200 or 250 hp od and a 25 hp kicker.....
But if you look at lets say a 1989 chris craft stinger the outboard brackets on this vessel is the way to go for this tiny to do it right for offshore fun!
Either way you do it im sure it will be done right! But outboards is the way to go. At 60 mph you can be 100 miles offshore in under 2 hours pulling in some 200 pound tuna fish and running home fast with the catch! Now thats offshore fishing!
With the I/O you will be doing 25 mph max with offshore fuel setup in that boat and thats just to slow and you will be sucking up 2 much fuel running wide open at 25 mph as oppsed to running half throttle at 30 mph with twins! Or twind 4 strokes even better! Or a huge single 4 stroke! Just giving you some ideas!
I had this idea 2 years ago and I bought a new home so I was unable to do it! Your doing everything so far that I would have done and thoughts I had had etc. But just really think about the bracket and the twin OB's If I ever get to do one like your doing! Thats what I would do! NB are you going to with a wood floor or are you going to try the star board floor? You should give it a shot especially on a offshore cc setup! We all know you can do a really nice restore! But if your building a serious offshore tiny you may want to go with star board for the flooring. Do it 1nc. Do it right! Rebuild this boat this time and make her better