13kΔV, 3-satellite Comms Constellation, 30 parts
Level 1 VAB and L2 Launch Pad limitations. I treated myself to one autostrut.
3x RA-100 antennae, each on its own MK2 Drone Core, providing significant SAS, battery and a computer, as well as a form factor that allows solar panels to be mounted in such a way that wouldn’t potentially be obscured by the dish.
Brings comm relay probes with over 10kΔV to LKO; get a good orbit, drop off a relay, decrease orbit to 2/3, burn to circular at next apoapsis, drop off, repeat, and triangular orbit achieved.
I absolutely never would’ve bothered making this without the limitations imposed by underleveled facilities.
Built in the VAB in KSP version 1.12.3.