Awesome, I'll have to check it out when I get a chance.Hey tanka2d, the Mining tower is now available in the new v1.1 update for the toolkit. You can set resource caps & harvest rate, both of which can be upgraded. Since there were a lot of other huge improvements to the toolkit apart from just adding support for v4.11, the catapult tower will be added in the next update.
I will need to send you my game progress when I have it up and running. I've modified to toolkit to create air units and AA towers.