ArcticsShop,
It looks like you have really dove into getting your Shopsmith in working condition. Alignment on the Shopsmith Mark V itself is a great starting point but do consider lubricating the needed parts since it was stored for a long time. Follow the recommendations in the manual but consider doubling up the amount of oil used going into the Motor and Idler Shaft Sheaves. It's the extra TLC it may need.
From what you have posted so far you have a Mark V with the original Table System that predates the introduction of the Mark V 510/505 Table System and the original Table System being called the 500. If you want to know when it was made post the serial number or refer to the chart below.
_
.
If your serial number is lower than SS18859 than it was made prior to January 1978. Starting with Shopsmith Inc. in 1973 those serial number have SS as a prefix. The serial number along with other information like the manufacturer is found on the Vent Plate on the Belt Cover where the lower shaft comes through.
You have expressed a desire to upgrade the Table System to the 510 in the future. Two things I would recommend. First get your Mark V into good working condition with lubrication and alignment then use it and learn how it functions. As you already said there is a lot to know about using these tools. Second consider which Table system to upgrade to. The 510/505 and the 520 use the same Table and Carriage but the difference is in the Fence. The Mark V 510/505 Table Fence has been discontinued whereas the Mark V 520 Pro Fence as it is called is still used and also the Table System used on the Mark 7 & 4. There are a lot of Mark V 510 Table parts available on the used market and are generally cheaper to purchase than the 520 system. Something to note here the Mark 7 introduced the Double Tilt Bench Ends and have double sided Table Posts to reverse the Table for under Table Routing and Shaping. This is now standard on not only the Mark 7 but the Mark 4 and Mark V 520S.
I am not going to recommend one Mark V Table System over the other. There has been a lot of discussions about which different users prefer. Since I have not used the Mark V 510/505 Table System I don't have an opinion on it. The only Mark V 505 tool I purchased was upgraded before using it to a 520 to use the same Table System I already had with my Mark V 520.
You mentioned having a Jig Saw (Scroll Saw) so if it is the Jig Saw a word of warning - DO NOT USE IT WITHOUT OIL IN THE GEAR HOUSING. Below is a picture of a Magna/Shopsmith Jig Saw for reference. It differs from the Scroll Saw in how it functions and maintenance needed.
_
- Jig Saw 1957 Greenie.jpg (84.21 KiB) Viewed 1180 times
.
This one made in 1957 may not look exactly like yours which is likely gray with a black arm but functions the same. Hopefully you have manuals for all the SPT's (Jig Saw, Bandsaw, etc.) that came with the Mark V.