I have now prepared a route for y'all. This is erring on the side of leisurely!
Link is here:
http://www.gpsies.com/map.do?fileId=rbpzqzwyyrklzxop
34.06 miles in total.
11.05 miles to the tea room at Fillpots Nursery in Langham.
11.11 miles from there via Dedham to The Haywain in Little Bromley.
The final 12 miles is a nice jaunt out to Wix.
Slightly undulating in places but nothing bad at all. Largely very quiet roads.
The Haywain stop serving lunch at 2pm so we'll need to make sure we're there on time (so I'd quite like to make a promptish start from Manningtree at 10am).
Don't forget that Manningtree Station does the most excellent Half Breakfast. I shall be at the station from 9am to enjoy mine!