I appreciate your feelings Jason; having admin stuff in an admin folder is good practice. However, I need my client to be able to just bring up the alternative basket and checkout pages without having to login anywhere, ideally, plus, as you've highlighted, there would be shed loads of updating required for include files, stylesheets etc.
What pages, from the eCart flow, will I need to copy?
I'll need a copy of the basket page because it will need to direct to the alternative checkout page:
Then I'll obviously need to create a copy of the checkout page:
What else? There's a confirm.php isn't there, and isn't there script files that these pages reference that might cause problems in that they request the 3D Secure authorisation?
I would appreciate your guidance with this. Thank you.