1993 Prostar 190 with LT1 motor rebuild or replace?

[Rockymtn]

I own a 1993 PS 190 stars & stripes (blue and white), that we have loved for the last 7 years. The boat has some signs that it’s getting older, who doesn’t? However, my biggest issue is the boat has become undependable. What I mean by that is I can depend on it to stop running in the afternoon so I guess it’s very dependable, in a bad way. I have had many diagnoses, one of which is vapor lock and have tried a number of things like wrapping the fuel lines, leaving the cover off when we stop, etc. nothing works. I suspect the 1200 plus hours on the LT1 may have caught up to the old girl. So this brings me to my questions. If you owned this boat would you rebuild the LT1 or would you replace it with something different? If you say something different what motor would you put in its place? Last question, anybody have a recommendation for a boat mechanic in Colorado?

Thank you in advance for the suggestions and recommendations,

Rockymtn