ok, offer down. Unexpectedly we went into sho tank aquarium today (i am doing an internship assignment there) and i asked how much a 40 gallon would cost (with stand, drilled and undrilled prices) he said he didnt have a 40 gallon, but a 65/58 (he wasnt 100% the size) drilled second hand acrylic tank. Same dimensions, just taller.
the price was 200, took us about 5 minutes to make our choice to get the tank and we got it. It included the tank, the reinforced stand (braces were put on separately by the previous owner) and a canopy.
EDIT: Measuring myself the displacement volume is 65 (36x19x24).
Only downside is the amount of scratches on there. Gonna need lots of sanding.