MOLLY II to be released but need some help first

MOLLY II her Flashy sister & her Pet will most likely be released on Monday give or take a few days.
The problem is the flight model needs approximately (depending on pilot) 4500+ft of runway to take off at 65,000lbs MTOW. It needs a bit more to clear a 50ft obstacle.
The CFS3 stock 3-runway bases 2000 meter default runway are OK as long as there is not much in the way of trees & hills at the end of them. The majority do have high obstructions which create problems.
I remember one of the guys built a runway extension that leveled the terrain and add more length to the tarmac. Thing is I can't remember who did it or where its uploaded.
I would like to include this extra in the package along with a list of 3-runway bases.
Does anyone know of - who - whatever about this extension?
The problem is the flight model needs approximately (depending on pilot) 4500+ft of runway to take off at 65,000lbs MTOW. It needs a bit more to clear a 50ft obstacle.
The CFS3 stock 3-runway bases 2000 meter default runway are OK as long as there is not much in the way of trees & hills at the end of them. The majority do have high obstructions which create problems.
I remember one of the guys built a runway extension that leveled the terrain and add more length to the tarmac. Thing is I can't remember who did it or where its uploaded.
I would like to include this extra in the package along with a list of 3-runway bases.
Does anyone know of - who - whatever about this extension?