The state of the art is that we have enough material for really basic work in electronics. This allows us to solder some led- and microcontroller-based circuit boards. Since we like to do some more advanced stuff we need devices that we still don't have in the space. We absolutely need a function generator and a spectrum analyzer for sure but also a whole bunch of new electronic components.

Have a look at these lists:

Here are recommendations of how to build up a lab: