I'm 6' 6"
and I fit easily in my Pearson 10M, although the the brochure as 6' 1-1/2". I can't go much further than mid salon without ducking a little. The v-berth is a little tight, but I fit in all the berths.
I wouldn't take it across the ocean, but it can easily handle some bluewater conditions.
It's easy to singlehand.
If you liked my advice/response, give me some rep points. If you didn't......well what do you expect, it was free.