The Lunar Module was an utterly amazing spacecraft. It's also one for which getting a feel for the inside is extremely difficult from photos$^*$.
- Has anyone made a full-scale mock up of the lunar module for the purpose of giving people access to the inside and get a feel of what it was like?
I could not find any results online and sadly suspect that such an object does not exist. I'd claim it would possibly fill an important need to educate and awe the public. It'd be fantastic to make something like this part of the many Apollo exhibits in museums!
$^*$Photographic views of the outside from the inside are somewhat disorienting because they are through triangular windows (with a downward orientation), outside photos of course don't give you any idea about the inside, and photos from the inside cannot show much because the space is so small. Having said that, there is an absolutely wonderful 3D/360$^{\circ}$ interactive photo courtesy of the National Air & Space Museum! Short of an actual physical experience this is as good as it gets https://airandspace.si.edu/multimedia-gallery/lm-interiorjpg