In my area trans goes for $50-$1505 speed manual D trans in my area typically go for around $300-400. Consider that when wondering about a long blocks value. I guess really... It's what ever you two can work out and you feel good about in the end. I would say $500 is a steal. $700 is max.... For me anyway.
Bout the same hereIn my area trans goes for $50-$150