Hello Welcome to the forums.
No pics? Desire, condition and location are all big factors. I belive the Tri-A was geared towards the Tri crowd so it is definitely a race oriented bike is that what you are looking for?
It sounds like a pretty small bike if the seller is correct on his claim of fitting someone around 5 ft. Most times you see something like fits 5' to 6'3'.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk