Have not done the eastward trip , came west though. its a light wind passage
. Your best bet is to leave early late may/june.
Ocean Passages of the world by the British Admiralty,or Cruising Routes by Jimmy Cornell will give you all the gen you need. ocean passages is more geared to large ships, but does contain pilot charts
transiting tips etc. Also Sailing Directions for the Atlantic ( another British Admiralty book) is invaluable.
I dont know how large yer boaty thing is but in a 38 footer we did 10 days to the Azores
, 20 days to Bermuda
and then 5 days to the USA. Never saw a wind
over 35-40 and then only for 24 hours. Other people have told me since that's about right for wind range either way. If your boat is Ok in light air the doldrums are not too bad, you might spend 3 days in them without using yer motor