The suspension swap is WAAAAY easy. An impact wrench really helps! You can save yourself 200-400 bucks doing the labor yourself. Just get an alignment after you do the swap.
By bars do you mean sway bars? If so, the front sway bar is a PITA to install. You will have to drop the subframe for that. If you're going to spend money on labor, spend it on the sway bar install.
If you drive around with only a front sway bar, then you will oversteer like a bitch. Just pick up both sway bars if you want to upgrade.