Stop agonizing yourself and buy another Imola Red e53 for about half of what it would cost you to buy an e70 and repaint .... Then use the $6K to ... (whatever).
Here are 3 examples of Imola Red e53 X5's for sale:
1.
BMW 2006 X5 4.8is Red
2.
2004 BMW X5 4.8is Imola Red
3.
2006 BMW X5 4.4i Sport !!!!