BadCon

Pro modular is expensive, but they do a lot of late model Fords in the Austin area and have a good reputation. They quoted something like $2400 to install OPG's, a crank gear, and an ATI Balancer...that was parts and labor. Sorry, but that is just not reasonable. I also found out they rebrand Boundary Engineering oil pump gears as their own, and charge 40% more for them. To put things in perspective, shopping the same parts elsewhere and using a dealers labor quote the total was under $1800.

The Whipple install is not hard, one of the selling points of the kit. Any Ford dealer could easily do the install, and per the terms of the Whipple warranty any ASE certified mechanic can install it. So don't get creamed by some speed shop when any monkey with a wrench will do.

Sharkhunt

BadCon

The 18 needs gears more then the 15-17, as they've once again gone with a thinner OPG on the trucks for 2018+. If you are installing the Whipple and using the Whipple tune, I would not worry about gears. However if you are going with an aftermarket tune with a high rev limit, then gears are a wise choice. Just be smart and don't pin the truck on the limiter and you should be ok with reasonable power levels. If you plan on going full headers with E85 and a 7500rpm+ limit, then yes...gears and crank sprocket. Dorian only broke his gears after a tune hiccup allowed his truck to bang off the limiter a couple times during a 1/4th run. That was after many many 10 second passes.
If you are gonna do gears, then do the crank sprocket too. I'd also look into the 18+ Mustang Coyote fluid damper. The truck did not get the fluid damper like the Mustang did.