Great price. Pretty simple build. It took me a heck of a lot more than 1.5, but I'm no pro and don't have a trunk so I had to level my truck and lift one side at a time to get the wheel off. If you are a perfectionist and have the tools you need/prefer (saw, small electric or pneumatic ratchet, jack, jack) this can only take about 3 hours from start to finish. It took about 4 but I want to make sure I haven't overlooked anything and that everything is torqued and retorqued to spec, u-bolts are flush cut, air lines are flush cut etc... and I've never had a bag for worn anything. However. . . The kit got clean with the help of YouTube and it doesn't leak for me. Maintained 7psi for 4 days (no load to aerate). I ordered a Firestone 3025 1/4 steel tee so I only have one valve through my rear bumper that vents both pockets equally. Worked great. As for the tips... watch the installation video on YouTube. They pretty much cover everything. Oh, and make sure your truck is on level ground. Jack up the rear with the parking brake on = usually no parking brake. I hate when you throw that on yourself to save $300 on installation costs. Be sure.