Agreed with above, I'd do a timing belt, tensioner, waterpump, cam and crank seals while you are I there.
All other fluids look fine except I wouldn't use syn in the diffs just regular gear oil seems to work fine for me but ymmv.
Aftermarket oil filter ph8a will also work but the capacity is a bit smaller then stock.
A 3/8 or.drill bit will work for the timing belt pump pin instead of the oem tool. You will also need a 3/8 click type and a 3/8 torque bar style torque wrenches to do the timing belt correctly.
You will need arp thread sealant or similar for the waterpump bolts and rtv silicone.
I use britpart/all makes for everything except for brake, timing and seals.
Trevor @ rovahfarm will have better prices than rn and is easy to deal with he has oem and aftermarket parts.
Lt77 filter is cleanable and does not have to be replaced
Use 5 year coolant (not dexcool) and an additive for diesel engines to keep water jacket rust at bay.
Since you are in NY, I'd also think about adding a block heater if you plan to drive during the winter.
Edit: an oil syringe or pump makes adding oil to the diffs and cases much easier.