Hey I can help with the configure number of broken block script and I can also (maybe depending on if you did this how I think you did this) help you make broken blocks slowly disintegrate. What do you say?
"What makes you think i could not do that myself, lol"
There is now an automatically generating config file, to be found at minecraft/mods/MultiMine.txt. Inside, you can set how many blocks are supposed to be damagible at the same time, and the rate at which damaged blocks regenerate.
Well i did not want to add a regeneration by default but then i caught myself staring at healing blocks for several seconds. Well whatever there is a low value set by default.