Any tax deduction for new vehicle, my situation?

[Joe Schultz]

My income is mostly from rental property (single family) but I still do some residential construction (mostly remodeling).

my pickup (07 Tundra has a transmission issue - for now just a check engine light)
will need replaced within a year or maybe two. 

1) Construction Co.

Would make the most sense for a serious deduction but since I've focused more on rental property my construction company doesn't gross enough to make the purchase of a new vehicle a viable one, probably get audited and then not sure what they would do.

2) Rental property wouldn't make sense either because it would be an administrative nightmare ( CPA says) to divide every expense up per each home.

If I change to having them all owned by a single LLC then if someone won a lawsuit against me, I could lose it all.

Deductions for now since I use my truck for Construction, Rentals & Personal is based on  mileage or I just get the standard mileage deduction (7k).

Just trying to be wise before I just do something.

Any thoughts on this would be appreciated.

Thank you, Joe