For the conditions you describe a smoothskin 4/3 with good booties and a wool or neoprene beanie hat are plenty. I have the Excel Celiant Drylock 4/3 and have used it very happily down to 40/40? conditions. I don't like to use gloves but palm less mittens are ok - most of thereat loss is through the backs of your hands due to windchill.
Fixed ! Gaskets a bit thicker than original . Used Aquaseal FD . Both via Amazon. Made use of an unopened 28 oz can of tomatoes. Pink sail repair tape inside and out.
