Well Matthew,
Breath or fresh air, 16 years old, congratulations.
Sorry I can be windy… here it goes.
I know you are asking about bushings but i would start with 2 items, GM 1967 B body assembly guide and a 67 mechanical guide, if you are even considering attempting a car with 55+ years of technology ago, you need to consider how you want to repair things and in what order, in my opinion you had better start with the frame, or better yet your tools, a space to do repairs, and not to discourage anyone, your financial situation. if you can rebuild the front end and drive it as is your getting away cheap, if you can do the work your self saves so much, tools are an investment that you will use for a long time when you own an old car and DRIVE IT!
If you pay someone to the work, #1 most do not want to work on “old cars” and if they do, the price doubles, need to get a rolling jack, and get car inside, up on secure jackstands (unless your set up like Ted 😉) Study the bottom, but if the car needs a frame, it needs a frame, (Teds photos are perfect, some holes you cannot see until lifted from the body) that a safety item you cannot ignore! Convertible frames are Convertible frames, not 2 door frames, convertible and are hard to find, may find a rolling one on FB, but watch out for scammers, there are a lot of good sellers, but just as many bad ones.
Look at trunk floor and front floor pans with an extremely close eye. Unfortunately cars have gotten expensive in parts, rebuilding parts, finding parts etc. shipping. Some will tell you all parts 65-70 Impalas/ B bodies interchange, some parts in suspension, but really not much else unless modified, and ones person’s idea of how something should be repaired may be different than the next.
Replacing the frame opens a lot of new doors, (I call it where do you stop) that’s the time to replace brake and fuel lines.
So please be aware of so many that love to take your money and do nothing in return.
Look for Impala stores on line, Luttys , H&H was mentioned, don’t use the one fits all like Classic industries or Ecklers, they try and satisfy the Camaro, Chevelle crowd, not us, the red headed step child.
Not that you may need to use them for something l, but a rap-ore with a company can save you in shipping and if the one person at a company treats you right and appears knowledgeable, ask to speak with them, always call vs the order on line to verify they have the parts.
If your front end only needs a rebuild and you can drive it, still check your exhaust and brakes, MAKE sure that the shop that does the alignment KNOWS HOW TO TO THE alignment. if they want to put shims in the front end, go someplace else.
by you description, the tow truck driver hooked the tie rod, and center link, or idler arm, all easy to replace and tools needed can a lot of times be rented. also check your strut rod bushings, r&left, often missed and can be time consuming it doing it with hand tools due to rust.
I know i went through the worst case to simple case.
This is a good post, most impressive is your age and interest, a lot of us used to be able to just go to parts store and get what needed.
Lots of good information in the whole post, take what you need, leave the rest, Just stay constant, don’t buy some of this and some of that.
good luck, as most Impala Forums we are a different breed.
good luck and press on
Bill H.