Hi there,
Geeze, i would just try a standard electrolytic.
I've done this with other regulators and they work just fine. The 100uf
electro probably comes in at the right ESR value anyway. If not,
add 0.5 ohms in series. Your choice sounds just right to me however
(2 ohms). The 10x value of C will help with the stability too so
you are probably good to go.
Test with various loads and input voltages, of course.
I dont know what other specs you are looking at, such as ripple rejection,
transient response, etc.