So today I finally have the Espar D4 working.
I had to by a mity-vac hand vacuum pump tho...
The reason why is because the fuel pump wasn't strong enough to bleed out the air from the lines.
Omg, having temperature controlled heat and dry heat too is amazing!
My fears of it being loud / noisy was silly, this is super quite and hardly noticeable.
Had to post a picture or two... not much to see, sorry.