I was in similar spot 2 years ago, and looking at the 17′ and 18′ impact but am a bit tight on garage space and ended up going with a 1775 Pro V and the 150 4 stroke Merc. I think the 1875 would have fit in my garage, but been very tight, the 1775 gives me a bit of breathing room and I am very happy with my choice as the 1775 Por V IFS was about the same price as a 1875 Impact Sport, bothh having the 150 4 stroke and similar other optiopns. I am able st squeek out 50 mph also with a luminum prop and light load and less as weight and conditions get worse, but think I am hapier with the storage layout of the Pro V.
So whatever you choose, enjoy, but jsut wanted to thow out an option to think about.