OK, today I did some extensive testing and some things have changed from the last time I tested these long time ago!...LOL
1. The 50k coordinate rule aplies to all Constructor Builds and only to the Deployed Sensor Station, all other Deploys except mining probe you can deploy anywhere.
2. You can not build a Trade station within 2 sectors of another one!
3. For Constructor Builds you have to be at a complete standstill and you can turn around, up and down to look around while construction is in progress.
For Deployes you can deploy certain ones on the fly not all of them tough since some rules apply to 2 of them and some rules might apply to others! Have not tested all of the deploys on the fly!
4. You can Build one of each Constructor build and one of Each Deploys in an empty Sector using the above rules!
5. Only Stations you can name are Player Build Trade Stations!
6. Trade Stations and Carriers and City docks are the only ones that have a Trade Inventory.
7. Constructor Station does not have a trade inventory. You can have equipment build from raw materials at them and you can run available contracts from them!....

