You'll be in the wheel well, but not actually under the car (unless you drop your socket and it rolls away
).
High enough to get the wheel off will suffice, but like Bob said, the higher it is, the easier the access. You are using jack stands and not just the jack, right?
I like buying from Pelican - their prices are good, they are great to deal with for their regularly stocked items, and every so often they send you coupons for cool stuff.
Do you have fuel filter on your to-do list?
Mark