I am betting that if you talk to joedoh he would come up with a chassis swap kit for you as well as the parts required for a complete hanging pedal. if you don't like the looks of a hydroboost you could fab up a nice cover for it, they're not very big compared to a vac booster. thats a personal preference thing but to me hydro boost will give you a better brake system. ask anyone who has one. maybe do the chassis swap first and then worry about what brake booster you will use, possibly more time to think about it and research a bit on which system is better to help you actually stop. I think hydroboost generally has more clamping force available vs vacuum boost. no soft or spongy pedal feel, you will likely be able to lock up the brakes if you want to vs standing on the pedal and hoping for the best. it's your truck so you gotta do it like you want it but if you have no parts yet research which would be your best operating system.
https://www.motortrend.com/how-to/11...ng-your-brakes