While I don’t know anything specific about the 1996 1890 you’re looking at, I can say that I have been entirely satisfied with my 1999 1785 YarCraft Wrangler DC, which I purchased barely used in 2005. It’s the longest I’ve ever owned a boat for. I cannot say enough about how well the boat is made, and the various creature features (bait wells, live wells, and cooler compartments front and back, side storage rod lockers, interior lighting on deck, in live wells and rod lockers), and how it functions in both inland waters and on big water, such as Lake Michigan. Part of my satisfaction relates to the performance with the 150 Hp V-max it came with;a good hole shot, and top speed right at 50 mph. I know a guy who has a 1989 Yarcraft, (not sure of the model), which he has owned for 7 years, and he too is very satisfied with it.
Not sure what motor you’re buying, but would suggest that performance would probably be optimized with the max HP rating. Under-powering might compromise the performance, because these are heavy boats.
So assuming it has been maintained well and has no visible or unseen structural damage, it should continue to serve you well for some time.