any you experts want to take a look at this software i just found

apparently designed and created by a australian guy....

maybe just what im looking for as well as many others...only relatively NEW

there is a trial version available to download

so maybe my mate TWEAKIE can pull it apart and see if its ok

http://www.advancedrobotic.com/blog/software/arts-new-toolshop-2-0-offers-a-suite-of-new-features-suitable-for-the-ducting-industry

I couldn't get the videos to play, but I wouldn't be surprised if that costs $3000-$5000.