The demo for this level runs an hour and three minutes even. I set 
that as the par time. You'll need GZDoom 1.0.27 to play it (which you 
can find here; http://grafzahl.drdteam.org/gzdoom/GZDoom-Bin-1-0-27.zip). 
The "-fast" parameter was engaged, the skill level set at Ultra-Violence. 

At those settings, I maxed the kills, items and secrets percentages and 
finished with 200% Health and 200% armor. As one player observed when 
this wad was first released, the map appearss to play optimally under 
the "-fast" parameter.

If you like, let me know what you think of the level. My email is in the 
credit bitmap, which you can see by letting the first two demos play through, 
or opening the wad in Wintex or XWE. It's also listed in the readme txt.

Happy Dooming!