Tank Rental Info....any advice?

I am looking to rent a large saltwater tank in Burlington Ontario. I seem to be having a problem with quotes. Can anyone advise me on who to rent from, how much I should expect to pay and what kind of service is available?

I would like a quote on three sizes. 8' long by 4' high and 2' wide. !0' and 12' lengths also.

Thanks
JB