I'm with Kman on this one. Several structures in the deeper water to hold fish in key locations. Structure that will create plenty of shade is a good idea. And create opennings in the weeds by laying a lot of wood,(slab wood works) on the bottom, creating an area that is difficult for the weeds to grow for a few years. This will create openning amongst the weeds, which in turn will create edges, and we all know how crappie love edges. If you lay the wood on the bottom in specific shapes you can create points and corners in the weeds. Do this close to the bamboo/porcupine/ tree structures you are going to create and you should have good fishing all summer. If you are not going to create places to hold fish then I would start looking for any irregularity in the grass/weeds and any minor changes along the drop. Also, if there is an inflow, be sure to look around it during the warm water months. The inflows will often be a bit cooler then the still lake water and it will continuously bring in food.
It is not about the equipment you have to use,
It is about how you use the equipment you have. :D