For the Super Scanner modification to 6 meters, I pulled the end tube sections from both ends of one of the dipoles leaving 57 inches on each half of the dipole and did not change anything else...I drilled a hole in the bracket close to the feed points and bolted on an SO-239. I soldered a piece of solid copper wire to the center of the SO-239 and tied it in to the insulated driven side. I didnt measure it...I just used a piece long enuff to be able to put my finger between it and the bracket and cut what tail I had... A ground strap is not needed as the SO-239 bolts right to the bracket.
I just wanted to see if it worked...
Well it did, and it worked so well I left it alone.

Note: In the drawing above, 1 of the original horizontal spacer booms is not used for clarity of the drawing! All three of the booms remain intact. You may have to experiment with the spacing between the dipoles due to the angles of the original 3 boom dipole support arms. You can use any of the old parts as needed.

The swr is flat over the entire band. I'm in Stringtown OK, and talked to W3IH in Truth or Consequences NM for my first contact on this dipole.

I've made a second one to add to the Super Scanner boom for vertical polarity as shown above. Again...flat swr over the entire band with 50 watts. If you use a switch to go from horizontal to vertical, it should work fine.

If you have a set of Super Scanner antennas laying around, give them new life...make 6 meter dipoles out of them.

Basic overall design of Dual Polarity 6 meter vertical and horizontal
 dipoles on one support.
Not drawn to scale

In the project for the dual polarity dipoles, drawing above, you will see that you simply mount one dipole vertically and the other horizontally and both are insulated from the boom and supported by it. This gives you dual polarity dipoles.The boom distance between the dipoles should be about 1/2 wave length apart or further, but not critical. You will have to fabricate the end of boom insulator and mount for each dipole as needed by your abilities and materials on hand.

Each dipole's length is the same as the Super Scanner antenna above using aluminum tubing of the same or similar size, average size of about 5/8th inch in diameter (original Super Scanner elements are tapered), 114 inches total or 57 inches per half and the boom length should be at least the total length of one dipole end to end. Some tuning for lowest swr may be needed so start long and trim down for lowest swr.