Little bit of an update

front seats are now out and front carpet as well as most of the trim from the dash and around the dash so i can get to all the electrics and i found a bit of rust

quite happy that i found it before it found me so it's only surface and a bit of bubbling atm, i've read in a mag somewhere that i can get some stuff that i put straight onto rust and it stops it going any further so i'll get some of that in there

right then i need a bit of help with electrics just to make sure
i've got 4 lights on the roof all running 55W bulbs atm each light has 5A wires going into the cabin they are getting wired in pairs (inner and outer) so i have 2 30A relays which are wired up like this:
Pin 30 Power from battery
Pin 85 Earth
Pin 86 Supply from switch
Pin 87 Feed to lights
the carling switch that i'm using is wired up like this:
Pin 2: Supply Feed in from high beam
Pin 3: Power feed to relay
Pin 7: Earth
Pin 8: Sidelight feed
now i'm not sure what ampage wire i should be using from the battery to the relay?
And how do you remove the washer bottle? i want to get to the part of the bulkhead where all the wires go through, i can see it from inside the car but not outside so i assume it under the washer bottle
Pictures
Also what are these relays and the unused plugs for in the pasengers foot well