Please make your posts more legible in the future. Thanks.
The only requirements possible are the ones already present.
You can indeed make capturable/tradeable racial technologies. Refer to SEIV Modding 101 Tutorial for a detailed explanation of how to do so:
http://se4modding.spaceempires.net/M....html#Chapter5
Limit is 4k pikels right?
Limit to what, exactly?