Get advice from both club and forum. And from any online reviews you can find. And from your LDS. Ask them all why they're recommending X, Y or Z. And then weigh it all up and see what makes good sense to you.
The realists will say buy nowt as they know that the odds of going beyond an entry level course is slim,
while the idealists think that everybody should work towards being a ninja diver in a year, usually using
words like "future proof", that or "get a rebreather"
Percentage of worldwide divers in the realists camp = 80% +
Percentage of worldwide divers in the idealists camp = under 5%
To be fair it's always great to see new divers go out and buy the most expensive everything and then do their first quarry dive in winter or vomit inducing boat dive and decide UK diving is not for them. It gives the rest of us the opportunity to pick up cheap second hand, used only once, kit.
seriously, buy nowt except a mask and rent or borrow a suit for the first few dives
In that case he should get:
Deep Sea Supply Long SS back plate
Deep Sea Supply LCD30
Deep Sea Supply Hog Harness
Deep Sea Supply DIR Knife
Deep Sea Supply 10 pound SS plate weights
Dive Gear Express Dive Rite XT doubles set (RG5200)
(rebuilt as single setup w/40” hose and 90)
Luxfer, Faber AL80 (vacation) or HP100 tank
Dive Gear Express Ultraview Mask (only $30)
Oneil 3mm wetsuit (warm water)
USIA bilam drysuit (cold water)
Go Pro Hero 4 Silver camera (optional)
Surefire E2D light (optional)
Shearwater Perdix AI computer
Tusa Boots, 5mm
Mares 5mm Hood
Hollis Dry suit underwear (optional)
Scubapro Seawing Nova Gorilla fins
(warm water, +buoyancy)
Hollis F1 fins
(cold water , -buoyancy)
XS Rubber weight belt
At least it's all easy to sell stuff.