Hi and welcome to the forum.
This question is pretty hard to answer. I'm assuming you would like to be as informed as you can be as a buyer. You might want to visit the shopsmith.com site and make sure you understand the differences between models, 500, 505, 510, and 520. See here:
http://www.shopsmith.com/ownersite/faq/markv.htm
One note of interest here is the fact that the first 510's started in 1985. So if the date is correct then this started life as a 500 and was upgraded to a 510.
Farther down the page is a table "How old is it" and you can check the numbers (serial numbers are located on the left side of the headstock either on the vent plate or on a red/white sticker).
Next would be to find a list of "standard" things that should come with the machine and make a list of that. I don't have a list for that period but if you use the current list it will be close. These missing parts can add up to a good deal of money if they are missing.
The condition of the machine can and will vary depending on previous owner(s). If it has been maintained well then it might be as simple as taking it home and using it. As has been mentioned it would be a good idea to clean it and wax and lub it first then do an alignment.
If it wasn't taken care of then it is any ones guess how much work and or parts in might need. Some parts will be reasonable others could be rather costly to replace. We have no way of knowing this, so it will be a judgement call on your part. The good news is you can do a lot to all of the work yourself and for the most part you can get the parts from shopsmith.......... 1983 is still pretty much a 1993 is pretty much a 2003 etc. Upgrades are also possible, like the new powerpro headstock....
The machine it self give it is in really good condition and has close to all its parts and if seems to run and change speeds (caution: do not turn the speed dial unless the machine is turning(running). A few questions on the maintenance from the owner can show if he has done any or just used it and used it and used it, a bad sign.
Location then determines a lot. Here where I live the prices are much higher then in other places. For me I'd say if it is really in great condition you might expect to pay $500 or perhaps more. Other places, other prices.
The list of "extras" is impressive. A lot like that is going to go for over a $1000 here as long as it all working. If it is all in really good condition then it might go for as much as $1400.
Now I'm only speaking to my area, if this were on the market for $1500 it would be a good deal. Others can give you ball park figures for different areas. I mean for $1500 I might even give it a look and I have no room to even put it.....
One thing that might help is providing your location in your profile. People here go out of there way to help others so it is quite possible a member might be able to go with you to see the machine and have a look at it. They might spot things and give you an idea of its true condition etc.
So with this I'll say good luck,
Ed
tjg79 wrote:Hi, I'm considering buying a used Shopsmith that appears lightly used.
It comes with a dust collector, planner, bandsaw, jointer, and molding kit.
What is a reasonable value for this machine and are there any issues related to its age?
The machine is over thirty years old. Does any wiring, belts or bearings need to be replaced. What would it take to put this machine in working condition?
Regards to all.