2011 Prius parts

I am planning to buy parts online for my wife's 2011 Prius 154K miles to get the 25%off but needed help on the part numbers. Are these the correct parts?
1. Hood Prop Rod Grommet - 9048015025: The round piece that hold the rod which keeps the hood open broke.

2. CLIP - 9046717026A0: I lost or broke the push clip under the car when I changed oil.
3. Engine Oil Dipstick Tube - 1140937010: I drop the clip that secures the engine oil dipstick tube when cleaning the manifold and EGR. I cannot find just the clip.

I plan to buy maintenance parts such as oil filter, drain plug washer, wiper blade inserts, and cabin air filter. Are there other things you recommend to purchase/stock up?
Did the following on the car:
- replaced 12v battery 3 months ago
- replaced PCV valve, clean manifold intake and egr months ago
- replaced spark plugs around 100k
- replaced one of the brake pad. I think the front at 120K
- have not replaced coolant but just recently purchased 2 gallons
- have washable air filter
I have read on this forum to change the transmission fluid. This is the one...Genuine Toyota Automatic Transmission Fluid-WS 00289ATFWS... correct?

Thanks!