I can tell you how I run my T5 base but those are becoming rare these days. People love 25 and 100 now. 10/10/7/3 for a 2,500 stack. Requires 100 T5, 100 T25, 100 T100 (70 to start and 30 to color up all 5s and 25s), and 30 T500. You don’t need any extra T500 to color up unless you plan on coloring up the 100s but that shouldn’t be necessary. You do need 5 T500s for every rebuy. So a set of 100/100/100/100 is more than enough to cover a game with rebuys for 10 players.
4 hour blind structure would be something like 15 minute levels: 10/20, 20/40, 30/60, 40/80, 50/100, 60/120. End rebuys, color up 5s. 75/150, 100/200, 150/300, 200/400, 250/500, 300/600, color up 25s. 400/800, 500/1000, 600/1200, 800/1600, 1000/2000