First - When was the last time the shocks have been replaced? If its anything over 30k miles, I would just replace them as you have to remove them anyway. Most fwd cars have the same or similiar suspension setup as the Aveo. Changing the suspension of a Civic is pretty muc the same as changing it on your Aveo. Just watch a few youtube videos and adapt it to your Aveo.

Second- Don't get pissed at you car because you dont want to/cant fix it. Its a car; things break and routine maintenance needs to be done. Its not like you engine grenaded on you for no reason. Bushings going out is normal. You dont want to buy tools because you can't store them anywhere, and then you complain that going to the shop is too much $$. Either find a new shop and get a better estimate, or just buy the tools and store them somewhere. You dont need a heavy duty jack for an Aveo. You can get a small one that fits underneath a bed. Same with jack-stands. Also, the owner's manual shows you where you can place jack stands and lift points.

Instead of paying $750 at a shop, buy the parts you need and spend the rest on tools. Jack, jack stands, impact gun, sockets, tool set, etc.