First, what age are your players?
I dont know how much help I could be as my league doesnt allow QBs to run. However heres some of my thoughts. First off, USE YOUR QB, since he can run thats a HUGE advantage for the offense. IMO, you should incorporate some option read into your playbook. Ive attached one play I have which should be run against a 3-2 or 2-1-2 defense.
In my play the QB is the decision maker. He needs to read the right side of the field. First how the defense aligns then the middle defender. Your gonna have a 4 on 3 advantage as its your WR, Center, RB, and QB against their middle, cb, and safety. First, if there aligned like my example your gonna read the middle defender over center. Both your Qb and RB pull right. If the middle man crashes on your QB you option to the RB. If he crashes on your RB, Qb keep. If hes in a position where he can get to both, dump it off to your center whos running a hook right where he was before he pursued your QB and RB. Your left wide out runs a streak to take out the corner or/and safety. Your right WR, runs a post where the void will be if the safety crashes down which is one of the ways they can stuff the run. However if they bring their safety up, you have a one on one with your WR on the right side. Another way to stop it is to pinch your CB in, if they do that then make ur WR run the post inside the safety and hit him in stride towards the middle of the field which should be open especially if the other side safety takes the left WR streak. kind of hard to put into words how it works, hopefully you get the idea. Whats great is essentially you have 4 plays out of one formation so your team doesnt need to learn four plays. they only learn one and your Qb is the one that needs to read, learn and adjust.
Which brings me to my next pt, 30 plays is rough for kids to comprehend depending on age. If you had practice everyday for months like regular football you can, but one to two practices a week its gonna be difficult. I would rather have limited plays that your team runs well, rather than alot of plays that the kids dont really know how to execute. Its much different drawing it out on paper than how the kids execute it on the field. You cant put alignment, timing, route running on paper. They need to practice the play repeatedly so they know where to go to open up holes. Hope that helps GL.