> we consider the height of a Minifigure (4 cm) to be equal to the average human height (170 cm), we can define a LEGO/human ratio of 1:42.5. https://www.resea

> we consider the height of a Minifigure (4 cm) to be equal to the average human height (170 cm), we can define a LEGO/human ratio of 1:42.5. https://www.researchgate.net/figure/Dimensions-of-a-LEGO-brick-a-LEGO-Minifigure-and-a-human-figure-compared-in-size-and_fig3_361385306#:~:text=...%20we%20consider%20the%20height,human%20ratio%20of%201%3A42.5 https://www.researchgate.net/figure/Dimensions-of-a-LEGO-bri.... Taking that into account I’d say the scale model would maybe be somewhere around 1:32 of the real size (because Lego pieces have a fixed size so you can’t scale everything perfectly). The real life Concordes are ~62 meters long, have a wingspan of ~26 meters, and are about 12 meters high. So at this scale the Lego model would be roughly 2 meters long, approx. 82 cm wide, and somewhere around 40 cm tall. For comparison, the Lego millennium falcon has dimensions 84 x 56 x 21 cm. The real question, I think, is how true to life we require the model to be. Like, the amount of details in it. I could see the 1:32 Lego Concorde costing less than the Lego Millennium Falcon, if some sacrifices were made in detail. So, maybe a price of somewhere around $500 USD could be achievable?