It does not appear to be a PRN10E but a PX-10....as mentioned by others (chrome rear Stays) The reynolds decals might have been removed so OP could look for remnants on fork and seat tube to confirm if they were ever there.
I agree it does not look like a respray either.
Price seems good if PX10 as the condition is nice for a bike 40 years old. If OP wants to get it back to original with correct parts it is going to push the cost up....if I were going original I would like nice looking parts for the frame build up etc.
JM2C, Ben
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