You'll need the Power Beyond circuit installed to operate the backhoe.
If the dealer is already slated to install the 3rd rear SCV -- let them do the PB and the hoe at the same time.
I don't know what kinds of trees you have or the size, etc. of the stumps; but it's a good thing to have the extra power when you come up against a work project that requires it -- than not have it.
Then you'll be plunkin' down that extra $1K for a hoe rental...
JMO.
Best of luck with your decision.
AKfish