For the Magna Model 4E Jointer, as John pointed out and included the instructions for, does come with a special Headrest. Remember the Tailstock is a different part. It does take time to get to know all the parts. I have been there myself. The Tailstock can be seen in the picture below. It is on the right end of the Model 10ER under the Extension Table which is attached to it.
The bench, especially the wood is looking great. I noticed the Metal Bench Ends are the early ones that did not have the mounting holes for the Retractable Casters. The Retractable Casters made by Magna for the Model 10 benches can be seen in the picture below.
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- R64000 with Jointer and Jigsaw.jpg (88.57 KiB) Viewed 950 times
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I estimate there were around 10,000 of the Magna Model 4E Jointers made based on the serial numbers I have seen. Probably more of the Mounting Kits were made since the Magna Model 620 Jointer could also be mounted on the Model 10 using the Mounting Kit. That way of mounting the Jointer predated the use of the Power Mount Adapter being used to mount the Jointer on the Model 10's.
As for the Jointer you have it may be possible to use it powered on your Model 10. Mounting it on a small wood platform attached to an Extension Table Bracket and Tailstock it could be run from a pulley to the motor similar to the Magna Jointer. It would sit higher than the Magna Jointer. The pulley on the Jointer should be on the other side of the cutter head shaft, if possible, then where it is now.