Looking at buying an 86' rx-7 n/a

[Ahsan]

Hey guys I am new to the forums I just had a couple of questions I thought you could answer. Okay so I'm looking at this 86' rx-7 right and it has around 122,000 miles on it, and it has an oil leak. Now I talked to the guy and he told me that it wasn't a leak in the block it's a leak in either one of the seals or the pan oil gasket. The engine also idles rough and it dies at about 500-600 rpms. However you have to feather the throttle to make the car run. Now I just want to know if this would be an easy cheap fix because I was looking at getting this car. Also he told me that the car wasn't started in about three years so I'm guessing thats why it idles so rough.