Kinda hard to give advise without knowing what direction you want to go in w/the truck. If you like the idea of flowmasters then sure, throw on a set. If you have no interest in running larger tires then nope, you don't need a lift. An alarm & remote starter can easily be taken care of by local shops.
To be perfectly honest most of the guys here are Bronco enthusiasts and to a large extent that means off-roading or at least a more agressive stance which usually includes larger tires. You can run up to a 33" tire without needing a lift kit. Just to give you an idea here's my 88' with 33's and no lift. Most of us enjoy them as dual use vehicles (daily driver & weekend toy) and the lucky few also have trail-only rigs. Your truck (or at least your potential truck) *already* has manual hubs & a manual Tcase and those are usually at the top of most guys wish lists. Off-roading islike a disease, once you're bitten there's usually a steady progression of improvements & upgrades all designed to take you further off road, get you into more & more inaccessable places and then bring you home again. Broncos are nice because you can bring along family & friends, carry several days worth of cmping supplies and strap a canoe to the roof.
You'll really need to get the truck, start playing with it and get a feel for which direction the Spirit chooses to moves you in before you or anyone else can really start deciding what upgrades & improvements are best. Maybe you like playing in the sand, maybe it's mud, you might prefer to drive out of state to the mountains & go trail riding or camping. Hard to know and each activity is best accomplished with a different setup. Some guys just enjoy the ride and the look of the truck with a mild lift & some 35" tires, some like big a$$ 38's while others are content with 33's. The selection of parts is enormous and it's very easy to setup the truck for either general purpouse 4-wheeling, daily driving or specific activities (mudding, sand, rock crawling, etc)
Might be best to get it home, start working out the kinks and taking time to goof around with it and just have fun. After all, that's why most of us are here, we like to have FUN and our Bronco's are the key to doing that. Some guys enjoy working on them & building them more than driving them, some like to just go out & get them dirty and still others like to see just how far off the beaten path they can venture and still be home before dinner. Take some time to get used to your truck, feel it out and see what appeals to you. In the meantime we're here to help iron out the wrinkles that always seem to accompany a new truck and you might also want to take some time and read through the archives to learn a bit more and get a better feel for how others use their trucks and what yours is capable of.