Johno, one of the first things is a suspension upgrade .... standard suspension is rarely adequate except maybe for strict overlanding, but we all know that's not where it ends .... there's always the urge to play a little. An upgrade could be an expensive exercise, but just at a glance it appears that your vehicle has already had some form of suspension make-over, so I would look past that for now.
First thing you need is solid recovery points that are secured directly or indirectly but in line with the chassis. There
will be times when you will need to be recovered and times when you will need to assist with a recovery ... a tow-hitch, bumper or bull-bar is
not a suitable recovery point.
Then at the very least, you need a tow rope / strap, preferably not too short .... about 8 to 10 metres with a 3 ton rating or more. Also some bow shackles of a similar rating .... D shackles are OK for ropes, but not as forgiving on straps. It's like an unwritten rule that you have your own equipment and not depend on others ..... straps and ropes have a limited lifespan, so whoever is being recovered supplies the equipment. This is especially true of kinetic (snatch) straps / ropes that have a very limited number of safe usage. Kinetic straps are a bit more pricey than tow straps and are not suitable for all types of recovery .... mostly just when you're bogged down, and a tow rope can still work in most such cases, so a kinetic strap is not an essential but still a 'good to have' item.
Next you need a place to store these items from where they will be easily accessible. I just use an ammo box that is dedicated to recovery equipment and some rudimentary tools.
Other important items are a spade (not a shovel) and a panga or machete and perhaps a good work-light.
A hi-lift jack is by no means a necessity, and certainly one of the more dangerous pieces of equipment, but nonetheless a handy tool to have on occasion. Essentially it's called a 'farm jack' but because the Hi-Lift brand is such a popular choice people mostly refer to a farm jack as a hi-lift jack. If you do decide to get one, get a decent quality and rating. Then you will also need to fit suitable jack-points to the vehicle ... these are often incorporated with the recovery points but not necessarily ideally so .... they are probably better to be independent since sometimes you might need to use both at the same time. You will also require the jack attachment for the lift points.
Another essential item IMO is a decent first-aid kit that stays in the vehicle.
That should give you a sound starting point.
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but i dont know if i can part with this one 
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