It's amazing how much this ROM base has actually progressed. Now I was thinking about something. A few years ago, I used to be working on a Littleroot Town model, in a kinda different way you've mapped. But I had so many flaws, such as me putting every tree polygon in the shape of a "+", like how B2/W2 does it. But I gradually lost the incentive to continue on the map. I would really like to go back to creating models through 3ds Max, but I'd really like to see a more easier way of being able to create the maps in 3ds Max or some 3D application that supports the TWL System 3D plugins.
And if anyone encourages me back into Black Version 2 hacking and model development, then I'd be more than happy to help create any future ROM Hacks with any team there is. There is just so much that I'd really like to learn about. I've been mostly a ROM researcher over the years and I have experimented with stuff, but I'd surely like to do more than that. I have the official 2010 TWL System packages. If anyone wants to get in contact with me to encourage me back into Black Version 2 hacking, you're more than welcome to. ^^
Anyways, it's really looking good so far, you've already got up to Route 103's map, that's certainly way much more than I'd have ever done. Best of luck to you! ;)