The Performance Center did not create any revolvers in 45 Colt ctg.
until the 625-6 in about 1995.
then later on the P.C. made the 25-10s , 25-11s , and 25-12s . these, in 2001.
A 25-5 could well have been sent back to the P.C. for work,
but it would not bear the P.C. crest under the thumblatch like
other production P.C. guns.
If your friends gun is in fine condition and in a barrel length
that you like and would use, $800. may not be out of the question.
I have paid less for most of my standard model 25s' in 45 Colt though.
But then again I hunt for deals all the time.
P.C. 625s in 45 Colt
P.C. 25-11 in 45 Colt
P.C. 25-10 in 45 Colt
All P.C. created guns I have seen will bear the Performance Center cartouche
on the frame.