For anyone looking to re-arrange this base buildings here is a setup that has work for me perfectly. Since i dont use Santa any more i dont have the risk of timing out, this building positions should help no less minimize santas possible proc surviver that will make you time out. Building positions have work well for me when farming S and also reaching T4 on the first run without garrisons. All on this base.
Hero formations for S and T that i use are also below. Though usual hero positions work well on R and below.