On occasion it can be difficult for me to make out S2 or S7 in photos but in this case, pretty easy. Those are s7 rims and since U brought it up again, I just noticed that the seat post clamp is not a 61 rather, it's older SA and heck it could be a repop too.
Otherwise, sorry to hurt your delicate feelings GT but,
@bloo has pretty much nailed all the possibilities including the grips in most any photo are to difficult to say if old or repop and do not belong on a 1961.
The whole bike was a pretty decent custom job with parts from different models.