Quick Open and Save of Maya FBX

Is there a way to make Maya (Mac) directly load and save FBX, or otherwise bind keyboard shortcuts so it appears to? Currently, we mostly check MA files directly into our projects (everyone has Maya licenses anyway) because working with FBX is such a pain when you want to make a quick modification.

Real (and frequent) example: Outsourcer delivers 100 models in separate files, and they're not all consistently scaled, facing down the Z-axis, etc. (Yes, we specify that we should do that, leave aside that we should send the models back, it's always quicker just to fix them yourself...) So we import them all into the unity project, then either:

With MA, for each file (that's positioned/scaled wrongly):

- Double click file in Unity editor - opens maya and file.
- Change file's transform
- Cmd-S.

With FBX, for each file:

- Open new scene in maya
- Drag FBX into maya. Accept pile of FBX options crap that must never be touched because it took us ages to set them up so that skinning and blendshape animations import/export correctly on some of our rigs.
- Edit transform.
- File-->Export, tell maya where to put it to save over the original object, using Maya's half arsed file dialog, accept all the FBX options again remembering never ever to touch them or else rigged+blendshaped model X stops working with Maya version Y and FBX plugin version Z with Unity version W.

Apologies for the ignorance. I'm just a programmer who's been using Maya to cut up tech art for 10 years, not a maya expert.

A.