Need advice on oil control ring!
 

Alright, here it is. I live in Houston and have been looking at RX-7's for literally a few years now... I found this guy selling a 93 R1, but he says the oil pressure is low and that the oil control ring between front rotor housing and front cover needs to be replaced (he thinks this is most likely the problem.) I also talked to him about hooking up an after market mechanical gauge to see what it reads and he said he did that but it still reads low. He said about 50 lbs when driving and BELOW 10lbs when idling. The guy did a rebuild and afterwards the pressure went low and he hasn't put like any miles on it. How much would this cost to get taken into a shop to get fixed because I can't fix this myself... especially if it requires another rebuild since I've read what a pain in the azz it can be. Please... help me. Also.. are there any good RX-7 shops in Houston, Texas? Thanks a lot guys!