Installing Kelsey Hayes Caliper Pistons ?

I tried installing the skirt onto the piston first, but I got very frustrated as the lube is so slippery, it was impossible to keep it all together while fitting the skirt into the groove. I did a couple that way but jeepers it was hard.
So then I made a little circular metal sleeve to install in the skirts that expands them to a little larger than the piston.

I lube the sq-section seals all round, and stick them in the grooves, followed by the pistons to make sure it all goes together smoothly, then pull out the pistons. My goal is to grease the grooves with the silicone to prevent corrosion.
Next I lube the outter perimeter of the skirts, install them in their grooves. Then I install the sleeve I made.
Finally I wipe off the pistons a bit, and drop them back thru the skirt and into the seal, and remove the sleeve. Then I rotate the piston back and forth a lil to make sure everything is A-OK.