I think vault export requires the password, so manually exporting all the entries one by one may be necessary. Wont be fun to do but if it means not starting over it can be worth it. And yeah storing the master password in a vault is definitely something everyone should do
I’ve found tuxedo to be quite expensive compared to their competition, namely Slimbook. Definitely look at their website, you will likely find the same computer over there as well since they are not custom designed laptops