The VFR avionics stack uses only quality components that are suitable for a Luscombe.
The Garmin 196 is fine for navigation. At 120 mph, a highly capable GPS is not really warranted. Simple things, like "terrain awareness", is conducted by looking out the windows.
The panel and avionics stack were designed to be upgradable to IFR. A Garmin 430 would replace the 196, and a GI-106 would take the place of the ELT remote.
Because the Luscombe has limited access behind the panel, the stack was designed to be self contained and removable as an assembly.
(See how it was built.)