So I just purchased this used OEM hitch off ebay. It looks like it includes everything, but is a little harder to tell since much of it is still bolted together. Those of you in the know, can you verify that's all I need or what else will be required. Going on an '06 4.8is
00 01 02 03 04 05 06 x5 E53 Factory Hitch Package Complete | eBay

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'06 X5 4.8is Lemans Blue

'01 X5 3.0 Artic Silver
bone stock

'97 M3/4 Cosmos Black
UUC RSC36 exhaust, ASA R1 17x9 w/ 255/40/17 BFG Rivals, Kosei 17x8.5 w/ Hoosier A6's, H&R Sways, GC Adj End Links, GC RSM, Treehouse Racing FCAB, RTAB limiters, XBrace, AST 4100, Hyperco 600F/750R, Vorshlag Camber Plates, fan delete, turner underdrive pulleys, sharked, aFe CAI