Thank you for all replies to date.
Construction of the boat is now underway and many photographs have been taken.
If any reader would would care to see them I shall gladly e-mail them. Just to whet your appetite if you live in the USA and shall have to wait another few months for your U-Boat.
No filler has been required to date and general fit of all parts looks very good.
Out of the options available I have decided upon U552 Early version.
By the way if the raised panel lines I mentioned in my original submission were scaled up they would be well over 1" high. Some welders!!!!