Well the C&C 29 MkI is a very similar shape to the 34 but I don't think they ever made that model with the glued in portlights, and the ports in this one look factory.
I kinda agree about the apparent 'size' but all the other parts (transom shape, sternlight, portlights etc look like the 34. Maybe there's just no reference with it sitting out in a field. Looks in not bad shape, and a Max prop too!!
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)