That Leak

Long time no see SN!!!
I haven't gotten the 1st bit of help from svtp so i thought i'd see what yall could do,
So tonight my buddy discovered the puddle under my car(04 Cobra) originating from the rear of the passenger side head, I've read up on several articles and it seems it's gonna be an O-Ring.. So i know this is a tight area to work in but is there any way to do this without pulling the motor or dropping the trans?
It's coming from the coolant out fitting and i'm on a budget at the moment View attachment 143215
so installing a Ldc or Evenflow kit isn't viable right now. I've had the supercharger off when i swapped to the ported unit and that wasn't a big deal.

Any help much appreciated!!

Coolant system all refilled and air purged via Reische's directions, I've highlighted where i can see coolant in red, Could it be coming from what i highlighted in blue?

Overheated on me on the way in tonight..

K, rained all day so i didn't have a chance to tinker around, But i notice the Evenflow kit says only supercharger removal needed to install. Done that before when i installed the ported unit and it wasn't too bad.

The a/c canister bracket's bolt on the firewall chewed a hole in the heater core return line, I'm just going to replace it with fittings and heater tube and i plan on putting something like a copper coupling over the tube in that area to keep it from be chewed on again.

Fixed, Bought some heater hose, brass elbows and clamps and made a small loop to connect it all. Swapped the restrictor over and purged the air and all is well. Also put a 1" copper coupling over the hose just above the clamp so the ac bracket bolt can't chew on it.
Thanks