Installing Kelsey Hayes Caliper Pistons ?

Some good info here
Not to hijack thread. I picked up a set of KH calipers and they were previously redone by SSBC and have SS pistons in them
I won’t need them for awhile
Q1 Should I take them apart, clean and lube them for storage ?
Q2 Called SSBC they informed me I must use seals with a lip ?? At $35 each side for their seals who else makes the lip seals??
Thanks