Materials to get started. Cardboard is cut in 1" strips.

Uncut pattern

Taped the pattern in place to trace out the back.

Once traced out from behind, I cut the pattern, fit it, cut it and fit it. I also rounded off the ends.

I then traced it to get a solid pattern.

Cut out the solid pattern

Taped it in place to mark the holes.

After marking where each bolt is at, I hit them with a hammer to indent the cardboard. This way I knew where to drill.

A mark where the bolt is at

I cut the base plate with a Plasma Cutter and then drilled the holes.

Made sure the bolt holes lined up.

I used 1/2" pencil rod to make the guards. The ends that will be welded to the base plate were measured up 1" and then bent to clear the cover.

I used a piece of pipe cut about 3/4" wide for the center piece. This is a 2" pipe. I tacked the two main pieces on first.
Used a level to level the center piece up with the base.

Here the are all tacked in place. Once I leveled it side to side for the two pieces above, I level it top to bottom and tacked the center bottom piece in place. Then tacked the two bottom side pieces in place.
I thought that 5 legs would look good and that if I did 7, it would look crowded.
It is up to the builder though at what looks best. You could put a leg inbetween each bolt hole to get the 7 legs.

Welded out with the Mig Welder

I then sandblasted it

Then primered it

Shot it black and added a wheel center cap painted red

The center cap

Bolted it in place. You have to get longer bolts to compensate for the thickness of the base. I got ones that are a 1/4" longer over stock.