Relay for soft start

I know this simple question might have been covered, but I just can't find a simple answer.

I am building a 5 channel UCD180 amp with total 100000uF and a 1000VA toroidal

Q1: What size of the relay should I go for in the soft start (when the soft start is bypassed by the relay, how much current does it have to be able to draw)?

Q2: What fuse size should I go for?