Lovely and looks as Fresh as if it were just built....!
Another great buy, and another that's nice to see going to be kept completely intact and not broken for parts.
I think if the Owner of Boarder cycles were watching he might just have a warm feeling right now....
The rear wishbone id say shared the same supplier as the lovely Overburys that's just come up for sale too.
The frame number stamp is the Same as the Formula, the Donohue and your Campag Equipped Fronteria as are the stems, so it all says TWG to me.
No imposter or substandard build, I would guess a newer model/progression (given the wishbone, loss of U brakes and more importantly the mag tubing), and typically built to hit a price point to remain competitive to be fair, especially given what Orange were knocking out the Clockworks for by this time.
You have from the North, You have from the Midlands, Now you need from the South....., That Sexy Overburys is "calling" my friend.