Hi hally,
It can be done, but it'd take plenty of experimentation to get a decent result.
Wood tends to move (change shape) over time, especially when subjected to variations in temperature, like the heat generated by the gear in the case.
Also, wood may not be strong enough to support the weight of the case and its innards when racked.
It's by no means impossible, but the best option if you wanted a wooden front panel would probably be a thin strip supported behind by a normal metal front panel. Thus, it'd be more work than just creating a metal panel on its own since everything would have to line up perfectly for the results to look any good.
Cheers,
Rob