Hello and welcome to the forum
@James Carper. Glad to have you here!
Looked at the GS Air Series of tanks.
Eleaf GS Air
Eleaf GS Air M
Eleaf GS Air MS
Tanks & coils are inexpensive (~$10). Two different Kanthal coils: 1.5Ω (8-20 watts) & 1.2Ω (8-30 watts). Both are dual coils.
Sweet Vapes usually has them in stock. Video =>
eLeaf GS Air M
Also look at the Nautilus Mini. Video =>
Aspire Nautilus Mini
I often use
vapeCrawler to see who has the best pricing. If I only want to see suppliers from the USA I make sure USA is "green" and all the others are "gray". If you go down to the very bottom of the page you can see all the
vaping websites vapeCrawler searches.