Tools in C using X?

I'm about to dive in and write a starship building tool for the High
Guard system.  Before I start, has anyone written such a programme?
Why code when you can borrow?  Why High Guard and not the latest
MegaTraveller or NETraveller?  I like the old system, and I still use
it.

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Matthew Goldman            E-mail: [email removed]
Fax: [phone removed]                 Work: [phone removed]
"We locked our keys in the flying saucer - do you have a
 coathanger we could borrow?"