If only I had the free time I would love the challenge!
Have you not seen the capabilitys of Sailing Canoes - vessels much smaller than 22ft have crossed the atlantic!
As long as the vessel and her fittings are in a suitable condition (very good) and type (hull design and weight) and the skipper has the nessesary patience and forethought which is required to take a vessel of this size on such a voyage then it is most possible!
I bid you Fair Winds and good luck with the passage!

(Just from curiosity... What is she?)

Phil