1993 T & C: ABS light stays on for a while @ start

I notice brake pedal is hard until light goes off (a minute or so) then all is well.

Notice also that the brake fluid is leaking out the top of the reservoir.

Hard braking & that kind of leaking in my previous 3 '93 T& C's has always meant that the ABS pump is bad and is a recall item, however this T & C has already had it done & the Chrysler dealer is refusing to do it again.

Thought that the recall/warranty on the pump was lifetime (?)

.... If not I have a donor van in the yard with one that had been recently replaced under warranty .... how difficult is it for me to swap pumps here in the yard?

Any directions & suggestions are greatly appreciated1

Thanks