Men don't cost much, and the buffers and washers you may be able to pickup on Ebay for a reasonable price.
Most of the cost goes into the rods. Those are most likely solid stele and they look rusty. As long as the rods are straight you can remove the rust(tinfoil and water trick) easily and replace the guys with little work and cost.
If the goals are blown out or the box has issues a restore may be not worth the cost. Rods can be $20 or more each so bent ones can be costly too.
Overall if you are looking to restore and sell the table you may get a couple of hundred once the table is clean and tidy, maybe more if you find the right person. If the goal is to have a good table that will handle four large males playing at once on it, well this table can meet that requirement.
As to how "rare" it is, the coin op tables are of more value and are more desirable as they usually have commercial grade quality parts. I see these HOME version tables on occasion in my area and they generally sell for 50 - 100+ depending on condition.
However, there are others that contribute here that have way more knowledge than me and there may be something special about the table that I don't see. Wait for some more responses and see what comes up.