Don't get so excited with eBay prices that you pay more than the price of a new tool! The current MSRP of the Shopsmith Mark V headstock is $1604.24!
FYI: The current Mark 5 headstock will fit the Mark I, Mark II, Mark V model 500, 505, 510 and 520, and with a little modification of your way tube it will also replace the worn-out head on your Mark VII.
If you choose to purchase a used headstock there are a few things to know:
Click here for Shopsmith Mark V Replacement Headstock listings
Click here for Shopsmith 10E, 10ER Replacement Headstock listings
Click here for Shopsmith Mark II Replacement Headstock listings (Very light activity)
Click here for Shopsmith Mark VII Replacement Headstock listings (Very light activity)
On last link. Our analytical data shows us that we've had a surprising number of folks who have gone from our site and have purchased either Shopsmith Service instruction DVD's or Headstock service from one specific eBayer named Jacob Anderson. I have no direct contact with Jacob but have "known" him for years through a couple Yahoo groups relating to Shopsmith and Sawsmith tools, and based on his feedback (currently 100% positive from over 2000 buyers!) it looks like he's the real deal.
The current DVD titles from Jacob include:
"Repair your Shopsmith Mark V headstock"
"Tuneup & repair your Shopsmith Bandsaw"
Additionally you can even send your Shopsmith Mark V's headstock to Jacob for repair by purchasing the repair on eBay.
Here's a link to Jacob's Shopsmith Service items on eBay
If you've had any experience with Jacob's products or service please click on the comment link below and tell us about your experience.
Below is a very odd video from author Nick Engler on removing rust from Mark V tubes using potatoes!