Yeah vape shops are pretty useless when it comes to old school vapers. I think they are mostly useless for anyone anymore lol.
If you want to buy the stuff you have now, your best bet is fasttech in china. Shipping is free for orders over $20 It will take a while to ship and be delivered to you, but it's hard to find all this stuff in one place with a USA retailer that is still shipping. It could take as long as 8 weeks to get your order, but usually quicker.
Aspire CE5-S BVC Tank Clearomizer (5-Pack) - use drop-down menu above "add to cart" button to choose between 3 colors. These are the same as the plastic aspire CE clearos except they are glass encased in metal. They are not easy to break becuse of the metal around the glass, so don't be afraid that they are glass. I have never broke one ever.
Aspire BVC/K1 coils - Coils for above clearomizer - use drop-down menu above "add to cart" button to choose different resistances and larger packs.
Eleaf Istick 30W - Better than the mini, just a little bit taller. Use drop-down menu above "add to cart" button to choose different colors (although the hot pink ships fastest.)
Buy as many as you can afford because this old hardware will not be available for much longer as it is "old school".
Fasttech can no longer accept paypal or credit/debit cards directly for vape products, so you have to first buy a gift certificate. You can buy these in exact amounts you need and they are giving 3% on top of the value. So as an example, if your order total is $72, then you should buy a gift cert for $69.90 and you will get $72 with the added 3% (equation is 72 / 1.03 = 69.90, (so total order value) / 1.03 = (gift cert amount you should buy) ).