When we were selling out 69 we considered selling it to a family from England and did the research for shipping - the best price we found with a reputable company was
Sales @ Carex Shipping
for our 69gt 21' $2395 RORO service - (roll on roll off) They had several different insurance packages all very reasonable too.
There are NO ports of reasonable price here in Canada - even Montreal was outrageous. It was cheaper to find someone to trailer it to the NewYork Port to Southhampton)
Good - luck.
If you need anything - maybe we can be of assistance - PM us if you like. We are only 2 ours from Toronto.