What do you mean by custom? You can definitely replace it with PVC and
probably adapt to whatever you need:

http://www.idswater.com/water/us/jm_...upplier_2.html


You found the pipe, mine's the six inch PIP. The pipe is buried in the field
road. Now, just try to find an offset riser to put the three inch shut off
valve beside the road at soil level. Don't forget the winter drain valve.
Trust me, it ain't made.

Karl