Just some advise, I would just go the tower route. Used rs's still bring $115 or so on here. They are the one speedo that holds there value very well... Up to you if $30 is worth the risk of used or not...
Thanks I may end up doing that if I cant get one for $100 or less. I only want a used one because I will not be using it that much and I do not want to solder on those posts