Good! Can you post a temporarely download link?
And I have a request. If you can make Portland Island from GTA 3, or only half of him, replacing that hidden LC interior from San Andreas, but with all from San Andreas' hidden LC Interior Marco Bistro' s building interior and exterior and an entrance from Los Santos Airport to here, it will be the best and the first Portland map in San Andreas without replacing current map.
Sorry for my english, i'm romanian.
There is a download in the youtube video, just look up San Andreas State prison. I PMed you a link to another download, I can't post it here because that is against regulations.
As for your request, That doesn't sound too hard exept I won't be able to add the NPCs and cars.
And I have more ideas: Instead of tunnel from Portland make a dock (from LCS, that place with humans protesting (here i dont need peds), before making tunnel), Toni (Protagonist of LCS)s house enterable, in construction bridge from Portland (from LCS too ), Red Light District safehouse (from GTA 3) enterable, Mommas restaurante (before Ciprianis restaurante) (LCS), and at Marcos Bistro some opened doors (The toillet and that place from Intro of Vice City).