TCP -
shoes : at that time of the year trail or road shoes will be fine. Wear whatever is most comfortable for you.
Blisters : see above. Also look at methods of preparing the feet. Tape, bodyglude etc. Carry a small kit to treat blisters or put stuff in a drop bag.
Food : practice on long runs. Stick with what you have tested on race day. Gels, nuts, flapjack, jelly sweets, cheese, sandwiches are a variety of common foods.
Drink : water is by far the easiest. Nuun, elete and s caps are common electrolyte drinks. Nuun is flavoured, elete is a droplet add in and s caps are tablets you
take with water.
GPS/Recce : take a GPS if you know how to use one. If relying on it take spare batteries! Course is well marked, learning night sections will be very helpful.
Crew : will be nice to have but the aid stations are great so don't think it is necessary.
Pacer : if you have someone who is willing to pace you then great. Make sure they know what you expect and ensure they are carrying enough kit, food and headtorch for themselves as the last thing you will want is to be trying to sort them out when they should be helping you!