Option 2 and 4 are well worth the extra tax. I have an 04 but the money I've spent making it look like an 06 far outweighs the difference in tax for the next 5 years.
Personally if I had the money, I'd be searching for a good 07+ HR. best looks with the facelift bumper, front and rear lights and bulge bonnet. Best interior with better plastics and nicer looking door cards with the padded section by the arm rest. Best engine with the most power, dual intakes look awesome capable of over 500bhp if you ever choose to boost it.