wooo hooo your in luck! got a group buy going on right now with rods. cunningham wants $1080 for rods and a 10-12 week lead time.
puater machine wants $1026 for rods and a 6 week lead time, but nikolas from duratecperformance.com is getting a group buy together. if we get one more person, we can get the pauter rods for $950! its a great deal check out my
post for more info.
if you want the info on specs and what type of rods youll be getting with pauter check this site out.
http://www.pauter.com/mazda_ford.htm
as for differences. the 2.5L and 3.0L rods are the same specs. the 3.0L crank is different however because the counter weights are different due to the bigger pistons.
as for the $6500 just in bottom end...i guess that would be if your looking for a custom billet crank, which will run you about $3500 according to terry. just get the stock one knife edged and balaced.