I would, with all the knowledges that I learn about the E53 and E39. I can DIY almost all of the works on them, except engine and tranny rebuilt. Time for a E53 4.8is or a E39 540i/6 when my son takes over the E39 530iA next year.

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00 E39 DINAN S1 //M5 (82k miles)
06 E53 DINAN 4.8iS, born 2/18/2006 (126k miles) http://www.xoutpost.com/bmw-sav-foru...s-my-dslr.html
90 Straman Z32 TwinTurbo Convertible, (1 of 44 ever made) 5 speed, 444rwhp/451rwtq
01 360 Novitec Spider F1 (26k miles)