Geting ready for my next project on the 72!

[sam's 72]

I still have to gather up a few items and order a few parts. I am getting ready to replace my windshield wiper motor, replace wiper switch with a delay wiper switch, install a new windshield washer container out of a 87 truck, it has the pump mounted to it, new hose for the squirters, and new squirters. I am going to pull my dash out for this install, while it is out, I am going to upgrade my 4 bottom gauges to Autometer sport comp. gauges, I am going to install 0-100 oil pressure, tranny temp gauge, water temp gauge, and volt gauge 2 5/8' gauges, I am going to repaint the needle on my speedo, and gas gauge, and going to install a Auto meter sport comp tach in the center hole, between the speedo and gas gauge. And while I have the dash out, I am going to install my new tilt column. Any do's and don't before I get started with this? Any useful tips, good hints, good suggestions? Let me know!
Trying to cover all my bases before I get started!
Thanks
Sam