The type of kit that anyone will suggest will depend on a few things.
What style of fishing does he want to get back into.
River, canal, lake. Silver fish, Carp, Specimen?
If all rounder then a decent rod and line combo could be bought for around £70.
If he wants to get into pole fishing on commercial waters then a good secondhand pole plus a few bits of kit could be got for around £100.
Specci fishing or bivvi style carping might set you back a few more quid £200 would get you set up.
Best check out magazines such as Improve your Coarse Fishing or Total coarse fishing and set your budget accordingly.
Getting started can be a minefield if you take too much advice from Match fishing fanatics as they all tend to ‘need’ everything ever made for fishing!!!