http://necros.quaddicted.com/downloads/ne_qep1.zip
did this on saturday, it's e1m1 -> e1m7 glued together in one giant map (minus e1m8 because it would have required a mod to get the gravity to work).
i kept my own mapping down to a minimum and only built two very small areas to help connect the maps together, but apart from that, the exits from previous maps connect directly to the entrance for the next map.
in particular, it's cool to be able to run all the way across e1m2 to e1m5 and back.
eventually, i want to paste the medieval and metal DM maps in as well and connect everything into a very non-linear single map and basically double up on monsters to bring it more in line with modern difficulty levels or something, but i wanted to put this out first in it's original form.
have fun. :P