I think Wrexham would be better off rebuilding properly for the future rather than trying to tempt aged has-beens into playing for them. It just shows how out of his depth Saunders is.
He may be old but he plyed Premiership football last season and from what I recall did ok. He never had pace but has touch and speed of thought which take longer to go.
According to the article he's also studying for his coaching badges.
If he's not working with a club at the moment I'd guess he might be willing to go for a nominal (or sensible BSP coaching) wage and they can register him as a player too then I'd have thought it was a no-brainer. I'd have thought any BSP club would jump at the chance to have someone of that quality working with their players.
Having said that, I'd love to see him go to Wrexham and be a flop!