Yes I think that's the way forward. I'll take some photos tomorrow of what I'm up to right now.... I have also attacked the Tubus with a file as there isn't enough space between the rack and guard braze-ons to accommodate the unusually fat plastic PDW strut attachments.
Good info, ta. Only had the top eye put on just in case, was considering knocking up some sort of bracket to attach my rear light to it, we'll see.