Unfortunately, the market for used pool tables is very bad.
There are so many for sale on the classified sites for next to nothing (including the big names - Brunswick, Olhausen, etc). You even have people giving them away to the first person to come and pick it up.
The Play Master Renaissance Magnum pool tables don't have any special features or "collectibility" that would give it a premium in price. That is to say there probably isn't anyone out there actively searching for "used Play Master Renaissance Magnum pool table". So your pool of potential buyers would be those looking for any pool table.
Unfortunately, because of the above, the best way for you to price the pool table will be to just have to look on the classified sites. Look for other pool tables for sale in your area, and price accordingly, factoring in how badly you need it gone. e.g. lets say you are thinking $500. If someone in your area can get a bigger name pool table for that same price or less... you see where I am going...
If you aren't in a hurry to move it, start your price high. See what interest you have, and if it doesn't sell, go down in price from there, in small increments, accordingly.