I am so sorry to hear about the loss of your blue crowned conure.
I think you will be very happy with a budgie, they are a delightful species.
I also live in an area where 'off the shelf' trash seed mixes are about the only choice. For that reason I order the brand name diets and treats from online stores, the available variety is endless, the food is always fresh and the prices are usually more reasonable. I also order toys specifically for tiny beaks that most local shops don't carry.
I line all my cages with newspaper, I would be afraid to use sand or commercial litter, if you do use it, I would only put it out of your budgie's reach, in the bottom tray beneath the grate. Budgies tend to pick at everything and if they do happen to swallow enough of the litter it can lead to impacted crops and severe medical issues.
An occasional honey stick is fine, but there are better choices, fresh millet, kale clipped to the side of the cage, shredded carrot or apple, budgie diets shouldn't be limited to seed alone. You may want to consider a budgie specific pellet in addition to fresh vegetables and a little fruit.
Budgies love time out of their cages as much as the bigger birds. Be careful to cover windows, mirrors and other health hazards until your budgie is familiar with his new home, especially if your bird is fully flighted, budgies panic easily and will fly into walls. Always be sure all fans are turned off before you allow your little buddy freedom.
Looking forward to photos and details of your new addition. Best of luck.