Well, the lifts are ok, but you don't want the wheel spacers. You live in Pa, just like I do, and the tire is not allowed to be out past the flare. Yours are right on the border line now, much less adding a wheel spacer behind it and moving it out another inch. Why take the chance of being hassled by the cops? Besides, wheel spacers are just hard on bearings and seals anyway.
The pushbar thing is out as well, sure they look nice, but they mount on the frame, look on your jeep where the frame is, right under the headlights. The push bar blocks the corner of your head lights (its the same fine as having head light covers on at night). Besides, when you have the push bar on, the headlights have shadows in them from the push bar. I would rather see well, than look cool.
YJ's didn't come with a rear bumper, they had what is called bumperettes, which were 2 hoops on the back that look like they would be a place to haul gas cans. That was the "rear bumper". So anything would be better than that.
The interior doesn't give you a lot of choices either, you have what is called spice, the other choices are light grey and black. Unless you go aftermarket, but then you aren't going to find the padded part of the dash. And if you do it will be way expensive.
Some of the websites that I use often are... www.summitracing.com
As well as Ebay, Amazon, and a few others. There is a wealth of parts out there and places to look, as well as tons of videos on youtube.com to watch about almost everything you want to work on.
Or just post on here. Most of us have been doing it for ever, and like me have been wrenching on Jeeps for a long time (over 35yrs for me). So never be afraid to ask a question, we are always here to help.