Thanks Superku, awesomeness for your algorithm, its great to find clued up folks.
I knew state machines were a good solution but didn't consider path-finding systems to be integral, so as soon as I have something I will post my results.
When its all done its my intention to release all to the community everything I put together after publication, including Unity conversions to GStudio but in C# ( my programmer does that bit) so others can use them exactly as they are or to suit their projects.

Some 3 months yet from having a working proto.

Thanks again for the heads-up....