PFD: be prepared to purchase an fairly adjustable one with floatation pockets that are small and flexible.
Go to a paddling shop or maybe a chandler rather than fishing tackle place.
One place is in Belmont on the Highway near Hadley Cycles – bright yellow. One brand that is good is Gorge – ULTRA .
Do not get the bulky type 3 as from what I have seen they are not easy to paddle in. Type 1 or 2 is ok
Choose a PFD that fits with a light jumper underneath.