I'm an 8.5E in AE 65 Last, the one used for the Park Ave. which this is probably the most similar in style to. From what you've said, the recommended sizing would be a 7.5 UK in these?
Shazb0tI'm the same size and take a 7.5UK in the Capital. I'm more of a D width but have a slightly high instep and there's a bit of extra room so you should be fine.