There are some versions of MIDAS around on bitsavers but I have to admit i haven't really looked into them much yet. Gotta leave something to the community, right? (or so i tell myself...). Another thing is that not all PDP-1s were the same and especially the PDP-1/X at MIT was a super hacked up version. Any code for that will not run my emulation (at least for now).

A real tape reader would be great and is something we are considering for the future, but without a punch it's not very satisfying. There will be a paper tape visualization though (currently writing the code for that).