help with choosing input modules to cover guitar and stereo line inputs

building my first very small, focused case mainly around multigrain. need a module for stereo inputs from synths/drum machines but also would like to play guitar through from a pedal board. i was originally going to get the intellijel stereo i/o but im worried about the guitar impedance.

looking for, ideally, a high fidelity preamp/input solution to cover line level and hi z input. if it can't be done am i just best off getting a hi z input module and a stereo line level input module?