Ya lol I know, I was just thinking this such that the lore would fit well...but ya bad idea to implement 

i thought this as well would be good if VL had the moving starbases - would be better if THEY where the vasi's method of getting onboard labs-  forget cap ships each SB hold 1/2 labs would have been a better idea - if they where upgrade slots on the starbases it would be even better becauuse then Vasari loyalist starbases would be weaker (if you used the upgrade slots for labs) and that would justify them being able to move

Yes, agreed with the Rebels, but if Loyalist take resources and move along (and we have already established that they build starbases), why would they leave behind starbases that they build? A lame analogy I thought of is: If you are travelling around the world (never coming back to the same place again) and making money at each place, you buy/build a safe to protect your money. But then when you move, you leave the safe behind, and buy/build another safe at your next place. It doesn't make sense. You would rather just take the safe with you. As I said, lame analogy, but gets the point across.

Lets give the Orky the ability spawn 200 corvettes every 2 minutes.

Instead of being able to phase jump directly, I think the mobile Orky should be able to collapse itself into a frigate-sized ship which is capable of moving between grav wells.  When it gets to the new territory, it could reassemble itself.  This reassembly process would take time, which would increase with the number of upgrades it has received (though it would be faster than building a new SB and buying the same number of upgrades).  During the reassembly process, the Orky would be vulnerable, and would need a certain level of support to ensure its safety. You could have multiple disassembled Orkies in a system, but only one would be able to revert to a SB.

The model for the frigate could be just the sphere part of the current Orky design, so developing the art assets shouldn't be difficult.

Well, with phase engines, they wouldn't be slow (idk how it works but I'm assuming all ships/structures in phase speed move at same speed, that's how it appears ingame). They would be slow in orbit, but that is okay since the Loyalists are in the process of stripping the planet. Also, why would Loyalists waste valuable resources to build and upgrade Orkys if they would just abandon them when they leave as soon as they are done stripping? Wouldn't it make sense to just take them with them, sacrificing a little mobility for saved up cash/resources and the extra firepower for a pinch fight? Whatever is chasing them isn't fast but in constant pursuit, as proven by pre-Rebellion Vasari movements

LOL