Move collider without rigidbody (one time)

I know that moving with collider without rigidbody have big performance impact because all static geometry have to be recalculated, but what if I want to move with object only one time after instantiate or getting from pool? For example : I have like 1000 barrels which are runtime instantiated and placed to some position (this barrels will never move and will not accept any forces). Should i put kinematics rigidbody to them even if I will never use this Rigidbody in future? It look like heuge overkill to have 1000 inactive rigidobdies in scene if I will never use them any more. Or am I wrong?

You have to test this scenario on the profiler.