My, Custom touring frame has 2 Tubes that form the rear triangle and run parallel for the top tube , and has a Twin plate fork crown with an Offset + a bit of rake in the Blades ,,

I was In the Shop while it was getting Built , and argues out details as they came up ..

I couldn't do that with a remote shop, in China Unless I Lived there and spoke the language and could see the tube rack ,
to know what my options were..

Maybe you can ,, the frames look really typical ..