I hope that you realize that the
STATE FGFS will come in a box ...
AND,
you will need to assemble it ... or, have someone assemble it.
It's NOT rocket science ...
AND, the only people who should
not undertake the process are people with arthritis-or-other-physical-limitation, surgeions of any ilk who need to use their hands (
so, dental hygienists, too), and hand models because those are people whose careers depend on their hands NOT becoming injured by having a tool slip OR people whose IQ is below 90 ...
Presuming your aren't in any of those categories, you simply need to take your time & be willing to undo what you may have done to ensure that an adjustment is correctly made.
If you can open a jar of pickles AND properly put the lid back on, then you have probably the necessary dexterity AND mental skill needed to work on your bike.
Tools are another issue, but most modern bikes do not need as many bike-specific tools that bikes once needed.
BTW. The pedals which come with almost ANY bike sold after 1975 should probably be considered as temporary UNLESS you paid extra for them; so, IMO, that is probably the case with the pedals on your brother's Schwinn.
I don't know what brakes were on your brother's bike, but if you were to look at a catalog (if one were available!?!) or scan eBay, you will find that some brake calipers probably cost as much as your brother's bike cost!
Nonetheless, it is possible to adjust almost most brake sets AND lubing the cables with a very light automotive-type grease or equivalent will go a long way toward making almost EVERY (even pre-lubed cables & teflon lined housing, IMO) brakeset work more smoothly.
EVEN expensive bikes need to be adjusted from time to time ...
So, it will be worth your time-and/or-money to go to your public library and
borrow(
-or-buy) either BICYCLING's or ZINN's maintenance book(
s) ... AND, to become familiar with the
Parktool.com website ...
BTW2. Based on the picture of the STATE FGFS and the apparent lack of specifics with regard to the frame's geometry,
unless your height is between ~5'7" and ~5'9" then I'm going to suggest that the
one-size-fits-all only-one-size bike may
not be a good idea ...
How tall are you?