As a data point, here is what I spent to set up my CR-V for towing, including a battery maintainer and Protect-a-Tow rock guard.
Blue Ox BX2258 baseplate 360
Blue Ox BX7365 Alpha Tow Bar 543
Blue Ox BX8875 Tow Bar Cover 37
Blue Ox BX88206 7 to 6 pin cable 77
Blue Ox BRK2016 Patriot II Brake System 1091
Blue Ox BX8869 Bulb and Socket Tail Light Kit 53
Red Loctite 8
Trim clip tool 5
Hopkins 39332 Towed Vehicle Battery Maintainer 24
Protect-A-Tow rock guard 243
TOTAL $2441
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