Mixing it up....
 

Looking at the TNE Books Fire, Fusion, & Steel, World Tamer's Handbook and realized what toolsare there for T2K2, DC, C&D. If one has a conversion rules kit for Twilight 2000 and The Morrow Project, one could easily make quite a bit of stuff without hand waving too much. What do you guys think?

I use GURPS, which allows use of GURPS vehicles as well as a ton of source books such as Reign of Steel and High Tech

I have Low, High and Ultra tech books. Steve Jackson likes TMP if memory serves.

I am 1st edition. So I bought (at the time) every Jane's book, weapons systems, aircraft, ships, military electronics, etc. about 12 in all (even have one for containers). Is that good enough reference? If not I also subscribed to International Defense Review and Soviet Intelligence Review for 10 years starting the year I picked up the Janes'. Still have them in boxes upstairs.

I don't own any of those. So I can't say one way or another. I have seen the Fire, Fusion, and Steel book, though I did not want to bother with making a conversion.

Depends on what you want to use them for. :)