Here's what I'd do re: Anegada.

Early in the morning after your first night on VG, check the weather toward Anegada. We love that we can call into Horizon for their advice as to whether or not to make the trip, maybe you can do the same for BVIYC.

If the weather is good, GO!

If the weather isn't good, try again the morning after your second night in VG. Don't feel you have to keep to your intended schedule.

I'd give up Peter for Anegada any trip.

The other option would be to visit LJVD as a day stop and overnight on JVD or the other way around. Or overnight at Cane Garden Bay.