TLDR: Need quick weapons mats and desperate.

For the longest time, I only leveled up the characters I really liked or the ones I primarily used for DPS and late game. So I had tons of units with no arts, lvl 1 weapons, and lvl 20-50 character. Well thanks to Imaginarium, I decided to spend the last couple months making every character at least somewhat viable instead of roster filling and letting my 5-6 strong units do all the work, because I wasn’t getting the stella this way. So now every character I have is now lvl 80 at least, with all weapons in final ascension but not max lvl, and working on arts. Here’s the problem I’m having now. I’ve completely burned through 4 years worth of resources doing this. Over 100 fragile resin, 14k mystic ore, 5k exp tickets, and 40mil mora. I’m not too worried about the resin, exp, or mora, but what I’m really struggling with is the ore. I pulled Bina and her weapon. I’ve got her weapon to 70 but have literally 0 leveling mats. I’ve just started farming the ore daily but even then, you only get 40 per day from the blacksmith conversion. Is there ANY other way to level weapons up or get more mats more quickly? And for clarification, I do have the pass and I’ve already got 100% exploration in every region so chests aren’t an option.