Installing the traditional "frameless" tempered glass shower door kit sold from Home Depot. "Frameless", because that is what Delta calls it. In reality it is semi-framless. What is important, is it is one of the cheapest options for a shower door regardless of semantics. The 1, 2, 3 shower door kit from Home Depot costs ~$600 depending on the 1. glass, 2. trim, and 3. handles chosen. This took me about 5 hours total to install. (paid links)

Other materials to purchase at Home Depot: (beyond basic tools)
1/4" dry tile drill bit (for tile showers)
Assorted plastic molly bolts 1/4" and below
Silicon caulk (clear or white)
Silicon caulk knife/spade like this one: https://amzn.to/3LtCMR8

Delta Shower Pan 400 Installation:
   • Delta Classic 400 Shower Pan Install