I would go with 140hp Suzuki's or Yamaha F150's. Both will give you the reliablity for twins, enough power and will be good on fuel. Seems most owner's with twin 150's are very happy with their selection and a few guys have repowered 232's with 140 Suzuki's and also liked them as well. Twin 200 four strokes may be too much weight for your boat and year, it may exceed what you can safely handle. Twin 200's would give you a good amount of power and speed, but in the NE where you fish there are not enough days where you can really open the boat up and use the power, for the extra expense for more horsepower, it would be cheaper to run smaller twin's at a higher rpm for those few random super calm days we do get if you really wanted to run hard. If speed is a concern, twin 150 or 200 HPDI's would also be a very good combo. They would probably put you at the max weight your boat could handle but would still give you good fuel efficiency and would push the boat well. The 150 and 200's were problem free, it was the larger HPDI's that had issues, so ignore any bad feedback about an HPDI you may hear, it is not true. I had the second HPDI repowered boat in NJ, it was from the first release and the engine ran great and my Dad and I were overly pleased with it. Some may suggest a 150 E-Tec, but reports have been mixed about them, some are very pleased and others say they are over rated so it is hard to really tell if they are worth repowering with. I used to love Evinrudes, but since the mid 90's they have spiraled downwards and have always been behind in technology since, that has just made me personally a little weary about them. Another four stroke option would be the Merc 150-200HP Verado's. There is a light weight 4 cylinder 200HP verado that might be a very nice engine for your boat, lighter weight then most engines, and extra horsepower, and being a 4 cylinder it should give you very good performance.
I personally am a Yamaha fan, I have had nothing but good luck with them and they are very proven engines, but if I were to repower my 265 in the future, it would either be with another pair of F225's, but I would take a serious look into a pair of Verado's. The Verado performance and speed numbers have been very good and the earlier kinks that many had have been worked out. My only draw back is the supercharger, it does improve efficiency, but I'm not sure how it will handle years of a saltwater environment, only time can really test that.
You have many options here, and it is hard to tell what to go to, an F150 or Zuke 140 have been ran on older 232's and performed well, that would be the safe and reliable route. If you are looking for more speed and maybe some new technology, a Verado might be a good option for you. More importantly, before you buy anything, make sure there is a local dealer, and go talk to the mechanics, make sure that you feel comfortable having them service your engines, and check around the docks about their rep. There is no sense in buying an engine if the mechanic is not good, an engine can be a great one, but if you have a bad mechanic working on it it will be worthless in a few years. As far as weight goes, I think you are limited to 150HP with a four stroke unless you went to the verado, the 4 cylinder series are light above 150hp. If you go to a 2 stroke you can handle up to 200hp.