Alan - isn't it cool when you discover 'connections' - so to speak - with the landscape and history? In Britain landscape generally equals history, because of the way history has shaped the country, but your story is a particularly good one.
I will back you with a call for Hat to look at doing Saxons.
Here we go:-
Yes the Emhar Saxons are okay, a bit weedy and some funny poses, but the main problem is nothing that would look particularly ferocious holding a shield wall. Both the Emahs sets are really diorama sets rather than wargaming sets.
Revell - Hollywood Saxons, a few useable poses.
Strelets - if you can find them.
At present Hat is still looking at Byzantines, and the El Cid range is coming to a close. There have been questions about doing some Normans - who fought for AND against the Byzantines. Why not add in Saxons and a set based on a Saxon shieldwall? Not many people are aware that King Harold of Hastings fame fought as part of the Byzantine Varangian Guards, as did other Saxons from the British Isles.
It is my humble opinion that Saxons and Normans would complement the El Cid Range and the Byzantine range perfectly.