>>2026072alright anon, here's what you do, buy the absolute widest chinese cassette you can get for 8 speed, the 11-46
11-13-16-22-28-34-40-46T
Remove the top 3 cogs so that it is just a 5 speed. Replace those with spacers from your current cassette. Big weight savings.
Now you have only 5 gears to worry about with massive gaps between them. You don't have to change anything else, you lock out those gears with your low limit screw, and your shifter just has a few clicks that do nothing.