Honing with Torque Plates - How Important?

The local shop that I am planning on using for the maching of my SB stroker, does not have any torque plates for a SB mopar. How important in a street engine is it to hone with plates? This shop has built or done the machining on several SB mopar stroker motors that I know of personally. Each of these engines run very well.

If I check the bores before assembly and they are round all the way down, what am I loosing (HP, reliability, etc.) by not honing with a plate. I know the concept of the plate is to simulate the head and any cylinder deflection by bolting a head on ....

Is there a place to RENT such plates?

Thanks for any input....