EGR valve replacement now car is death shaking on startup

Stats -
2013 Prius V
245K
Head gasket HAD BEEN REPLACED at @ 230K
Car was running fine when receiving EGR CEL, no issues.
Car still ran fine after receiving EGR CEL.
Immediately ordered New EGR Valve.
Replaced-
EGR Valve and PCV Valve
Cleaned-
EGR pipe
EGR cooler (NASTY)
Intake Manifold

Started car back up and got the death shake, it would not go away.
When I put the car in neutral when running it definitely reduces the shake, but still not running well
P0300 P0301 P0302 codes (received at different intervals of diagnosing).
Checked Spark plugs and coils, not fouled/working improperly.

I think I have a Vacuum leak issue (forgot to put a hose on or incorrectly)
I want to get some feedback before I tear it down for the third time.

Thanks!