That is my message I sent around a week ago but I did not receive any feedback. My boss Mr. Dale Tupper forwarded me for contact person.
Anyway, we need something like small iron roughneck or hawk jaw for makeup and break off drill pipe connection which is can spin until last threads connection before we lay down the pipe. For pipe size and torque require is close to your 1500-RST model. I think the small iron roughneck or hawk jaw will suitable for hydraulic workover unit.