Money is not a problem when it comes to quality. I don't think I will
vape at 6 but more in the 4,5 range. All this help is greatly appreciated.
I recommend getting mid-level
tank in the $25 price tange for a first tank, just to see if you will like cartotanks. There is a slight learning curve involved, but if you educate yourself before attempting to set it up you should do well.
For a pyrex cartotank I recommend an
ibtanked.com For under $25 you can get the tube and stainless steel endcaps. You will need a drip tip and a refilling tank tool (accessory section). This vendor is currently out of pre-punched cartomizers, but you should be able to find a vendor from the list that I already linked to in my first post.
For a polypropylene plastic tank I recommend this kit from My Vapor Store. Under $25 gets you the choice in clear or colored tube, metal endcaps, a drip tip, and choice of pre-punched cartomizer 5-pack.
510 Pro DCTank Combo
Both of the above tanks will be safe to use with all flavors of juice and not fear cracking or melting of the tubes.
I recommend reading my tutorial on setting up a cartotank:
http://www.e-cigarette-forum.com/forum/blogs/baditude/3710-5-cartomizer-tank-setup.html