Looking for first hand info, comments, etc. on 40 gal. plus tanks and who has the best price. So far I've found that Aerotanks in Corona, CA has a 40 gal. replacement, price unknown (retooling until Jan 6th I was told by their answering service), also Long Range (imported by MAF) has a 40 gal. replacement priced $400 or so and last but not least, Opposite Lock (imported by SOR) has a 50 gal. replacement and a 20 gal. auxiliary, priced ~$800 and $??.00 for the other .