USPS has the worst tracking ever.
UPS usually is cheaper ship method...IF you know how to do it right.
You need to do as above has said. Let UPS know that you will clear item. Drive to closest customs office (usually down road from UPS depots) . Pay taxes if applicable and walk out with receipt to go pickup your item at UPS.
UPS shipping is faster and most times will cost less than USPS
I've ordered big items like tires and wheels, exhausts, etc and never had to pay extra brokerage like others have...just need to know how to do it.