I spoke with both Tony and Josh today about the markers.
They're in the process of building them and have been going over each individual part in order to ensure they are to spec. Josh stated that they actually threw out ~50 bolts because they were not right. They've been having small parts ordered and dealing with an issue with the balancing of the valving.
Another issue that they have been facing is a lack of slave labor :P
A few of their people got called away due to life, so they have a severe shortage of bodies to build the markers.
I will be speaking with them tomorrow and I'd like to invite anyone with a question to post up here or PM me and I will make sure that it is answered when I speak to them. It doesn't matter how technical or blunt it is - They will answer it.