I understand all that. I'll try to contribute, and hopefully motivate you, not pressure you. The two texture versions idea might even work with very simple code. Change the version of each texture in the game from version 1 to 2 and vice-versa on every move! If you keep the versions similar enough but visibly different, it will work! I think. Because with each move all textures (floor and wall) should move, so you won't notice the switch from, for example, the floor that was two sectors in front and is now one.
Anyway, I experimented a bit in Paint Shop Pro with texture generators and perspective effect, and I think it works rather neat. A note: this was just proof-of-concept done in 10 minutes (yeah, I thought it would take longer for me to figure it out).
This is not a mock up. I can send you the images. But I would really like to take few hours and try to make better textures (and more precise, note the black areas on edges), two versions of them, do all the grass in the game, and hopefully all textures for one wall type, and let you see how it looks in the game.
BTW, could you send me an email: lachie13@yahoo.com
I'm not sure how much others will appreciate our public development.