Yeah, last night I decided (since the creation of my own day/night script) to work on my old v8 project, SMode (survival mode, which is basically this.)
In five minutes I threw together a resource mockup using a 'Special' input event to store data (credits to Trigun for the idea) on bricks, and a resource array on the player (and a simple /scavenge command that you have to be 30 units away from the last place you used it to use).
Seriously not much was done here in 100 pages :P McTwist and I could probably remake a lot of it quickly.