When talking about ERP-software or something like that I understand open source. But even in that case usually only software developers do the job. I'm not familiar with modelling software but ERP I am.
I wouldn't download if the source is not credited by Line6 or some other reliable source. Dont't say that it is impossible but suspicious I am.
Even though above said, if the idea works it would be fabulous. I presume there might be individuals who have the skill and enthusiasm. And sorry for my english, not my mother language.