Expanding my skills/business, need some pointers

I restore old/historic wood and metal windows for a living. I operate out of SC just south of Charlotte NC and service most of the state and parts of GA, NC, TN from time to time. This is all single pane stuff, occasionally replacing with tempered glass.

My grandparents have a massive mahogany door with stain glass as the insert, and a cousin of mine just bought a house with arched, leaded windows. Both are in need of repair.

I’ve been doing research (YouTube, ordered a book, etc) and it looks really quite doable in the field/on site so long as I have an adequate flat spot to work. What I NEED are suggestions for TOOLS AND EQUIPMENT that people have found make their hobby/livelihood more efficient, profitable, and skilled. Also the best way to source colored/textured glass, an online retailer would better fit my needs given travel.

I imagine I’ll be doing more work with lead came than copper foil. I cut glass well and easily, but from there I’m a newbie who would love some advice. Thanks!