I say take all the time you need and make it the way you visualize it so it is more a labor of love instead of something you have to do. Don't let anyone pressure you as it should be enjoyable and something that you can visualize yourself enjoying to play in.
I figure it will be done when it is done.
I own the complete Twilight set so I tend to "visit" Forks quite often - seeing I really love the movies - but as often as I visit I can tell you everytime I go there I see the surroundings a little different. Of course they have a tendency not to really focus on the area as a whole - as from what I have learned by having all 5 disks with all the "extras" is the movies is filmed in a lot of places made up to appear to us to be Forks, WA - even though there is a real Forks, WA some of the most pertinent scenes in the movie is not necessarily the real Forks or exactly as the real place is - so using their great skills with editing and photography, they mesh together their view of this place as much as the Author also meshed together their view of this area her characters live in. As one who has written books and described what is generally fictionalized town that only in my mind I construct them around familiear and real places so readers have a reason to associate - I can understand the process and I can see what an author sees. Turning it into a movie I can see the challenge when a story is only loosely based on a real place. All that said - I think you as the creator of this place are doing a fine job of making the vision have a reality - and it should be how you picture it all first and foremost. Most of all, enjoy working on your vision, don't pressure yourself. When it is done - it is done.
All that said - I like the sounds of what you are doing very much. The ports I think will be really fitting.
