I do not see any issues Rainah, welcome fully aboard. Do you have any ideas for where your character will be starting out at with the start for the setting? I am giving people free reign largely with what they are doing on the world whether it be passing through, something nefarious such as horrific experiments or forming chaos cults, and if you want a simple openning people can work out a position on Zed's ship probably.

Rainah if you get a chance to make thing seasier to keep track of for me can you add the costs to your advances bought? I realize now that i forgot a section for people to keep track of their exp on the character sheet.

I believe that in the book you can be slightly taller than some astartes though I am not sure. Astartes kind of vary between 7-9 feet in height and humans can get over 8 I think.