So, last night I ordered a new Heng Long King Tiger. This is only my second tank and I would love to install a recoiling barrel on the turret. Can anyone offer any insight on what is involved with this particular modification in terms of parts, suppliers, probable issues, etc.? On a scale of 1-10, how difficult is this modification? I really want to get this tank right which is why I'm trying to pick the brains of those familiar with this mod. Crius, I hope you're reading this. Thanks in advance for any help you can offer.