Welcome. Your a forum member I have respect for. You drive your car and obviously it isn't a garage queen. Good man. That's what a car like this is for. That said..
If you were changing your oil I would say, it's easy go for it. Transmission fluid, plugs, and wires I would say, buy the plug wires and plugs from "Needwings". Do a search for this company. Rob has great deals on CF parts. Good prices. Get the tranny fluid at Pep Boy's. Have a shop do the work. Worth the money. Not that costly. Let me know when you reach 250k.