Luc I love these and it is a brilliant use of recycling/repurposing the glass panels. But shipping an assembled tank is gonna kill you on postage. Why not take the glass sheets and sell them as a kit? Make up an instruction sheet for the models you have done so far with pictures; then sell either just the glass or a "deluxe do-it-yourself fishtank!!" kit with a cheap glasscutter, tube of silicone, and roll of tape. You could probably sell the kit for US$50 with shipping MUCH cheaper, your time saved and more profit. Sell the ones you make for fun locally. 


