VERY good choice in my not very humble opinion
You will not need a WINGMAN with a Sensar IV as .. It is included in the box already.
The Sensar PRO is optional,, but I do recommend it..
I use a Sensar II (I think, might be an III) with Wingman and Sensar Pro, that is very very close (Basically identical) to what you are planing to use.
I am very happy with it (Though I do need to make one modification, but .. Well,, That will wait for like January. (Since I'm stuck in southern GA and it is outside and does not need doing where I am just now)
This mod should not be needed on an IV though.