Hey everyone, i have a 98 ext cab 4.3 that is currently lowered. I'm sick and tired

of weaving my way around bumbs on the freeway, in parking lots, and avoiding speedbumbs altogether. so i am going skyward cause i cant stand a stock ride

. But if i do this i want to go long travel, however, budget is an issue, but i have heard some bad things about the AIM and Fabtech kits. I can afford right now tops 1000, but would like to stay closer to 800. So, i'm looking at the Baja Customs upper arm kit.
Couple questions
What other items will i need to complete the install?
How much lift/travel will i get?
Will i have the option for further add-ons in the future to make it a true long travel install?