if you can source a good, low mileage fob, then you can either swap the case over, using your own internals, or have the whole fob reprogrammed for your car (technically the car is programmed to accept the new fob)
There were some on heebay a while ago, I got some, and at the time thought 'i should get dozens, and then sell them on to PFL owners as their fobs become unuseable. But the market is pretty damn small, about 95-96 MY, the MFLs onward use an all-in one style key, no separate fob.
That's your third option, by the way - get a MFL-onward all-in-one key. If you wanted to 'upgrade' you'd require a donor vehicle with its 'brain' etc, but could be sourced relatively inexpensively. If memory serves this is separate to the actual engine ECU etc, so no need to find a donor vehcile of same engine etc. The physical locks are the same on any Omega, you can (and I have) run a FL car using a PFL key, just with a piece of handy sellotape holding the chip to the other key.
Everything's doable. 
I'm not too fussed what it looks like, as long as it works. Whether the key and fob are one unit or not doesn't worry me at all. I quite like the one I've got, I just really need a new case for it, or at least the rubber button covers.
I did read on my other post about the fob that replacements are available on ebay? I wasn't sure if that was just the case or the entire fob. Assuming an entire fob is available (either a 2nd hand OE one or an aftermarket replacement), how do you get it programmed to work on your own car?
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Topic: Omega Remote Locking Batteries - what type? (Read 3027 times)