If you want 35's, get 35's and live with the performance until you get around to gears. I didn't catch if you have a auto or manual? Manual - just run a gear lower. Auto - press the OD/Off button.

Open the faq's and scroll down to the rpm charts. Use measured tire height, not the spec listed by the mfg or tire site. (or ballpark it at 1" shorter than the spec). If you have an auto, find the rpm, then divide that number by .69 to get the od/off rpms. You may notice that 3.73 with 35's and od/off won't be too far from 5.13's with od/on...