Good thinking. That is exactly what I would do.
However, I towed my '06 Jeep Wrangler Rubicon Unlimited. with a simple Reese adjustable width fixed arm towbar ($165 at Walmart), with the brackets bolted to a custom after-market bumper. In fact, I used the same towbar on earlier Jeeps with the brackets bolted to the stock bumper (with strong back-up plates, of course).
As far as wiring, I have used a 6 pole double throw switch wired in to select between the towing wiring and the vehicle wiring, and I have used a 4 pin trailer connector next to the driver's seat, to switch between the towing wiring and the vehicle wiring. I have never used any of the specialty wire harness adapters, so I have no opinion about them. I hear they do the job just fine.
I think you have the situation handled quite well.
CM1, USN (RET)
2017 Jayco TT
Daily Driver: '14 Subaru Outback
1998 Dodge QC LWB, Cummins, 5 speed, 4X2
2 Kawasaki Brute Force 750 ATVs.
Pride Raptor 3 wheeled off-road capable mobility scooter
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