Depends on the type of stalking but a lot of people carry to much IMO, Rifle obviously, ammo a little more than what you think you will need, I will not start a stalk with less than five rounds, things can go wrong nothing worse than a wounded beast and no ammo.
Binos the best you can afford, though just because you cant afford Swaros it doesn't mean you can't go stalking.
And a knife thats what I would say is the essentials, a lot of things are nice to have but they are not essential.
For my own part it depends on whether I am Roe stalking or on the hill for Reds what I will carry for Roe boots or wellies depending on the weather jacket, trousers type again dependent on weather, hat with a wide brim to shade your face I never really wear gloves hands in pockets if I think there is a danger of them seeing them if I need to crawl then they are in the undergrowth ,and stalking sticks tripod homemade.
On the hill Jacket, maybe tweed maybe Deerhunter, breeks [tweed] boots and gaiters bipod on the rifle change stalking sticks for a good strong walking stick short bit of rope for dragging and of course knife, and last but not least a mars bar.
The stick has several uses its a third leg when climbing or a support for the spotting scope, if you use one on the hill as opposed to binos, I tend to use binos when actually on the hill, use the scope to identify stags before leaving the truck,
and leave scope in the truck, also stick is an aid for dragging keep the rope short tie one end to the middle of the stick
you can the use two hands to drag, the stick is easier on the hands than the rope is if you keep the rope short it lifts the stags head off the ground making dragging easier.
I do have quite a lot of gear in my truck but that is usually where it stays.
spotting scope, spare knife, change of clothes, spare pair of boots, knife sharpener, steel, bone saw, first aid kit latex gloves [ though must admit only wear them when showing someone how it should be done as probably just my imagination but always think I am going to cut myself as I don't seem to have any feeling in my hands when wearing them]
Flask and piece but they go home unopened as often as not.