I am now getting the drawings ready, so still lots of time before it's too late. At least some weeks. It depends on me getting into gear and doing the drawing mods, because so far only one party has responded with modded drawings. So it's up to me now to send around emails to each interested party with a pick list of specs. That's how we did it with the previous batch.
Thanks, I will do the research and get back to you on this soonest. Great idea!