Correct on the EC "Extended Cockpit".
In 1995 there would have only been the XT 430 GT Performance Series and the XT 430 SC Sport Cruiser. The GT was the Flat Deck (5' 8" headroom)and the SC was the raised deck (6' 10" head room).
The SC has an 11,500 lb weight and the XT had an 10,000 lb weight. Both of these weights would have been with twin mercruisers and Bravos. The twin Yanmars would definitely add weight.