Ported 906 heads

The primary customer for ported iron heads are the guys playing in the FAST type series........ and they typically spend way more than what Stealth heads cost for nicely reworked heads.

As for what you get for used ones.......probably somewhere around 1/2 of the replacement cost.
If you find the right buyer.

It’s very easy to spend $1500+ refurbishing/reworking factory iron.