I would NOT try to start the car until you have done an inspection of the engine. The rust on the intake and other parts of the engine (exposed steel) can be indicator of trouble ahead. Hopefully the engine was sealed and that you don't have that kind of rust inside the engine.
Take the valve covers off, take plugs out and have a look to see if you any rust or corrosion is present.
Drain all the fluids (oil, anti-freeze, gas from tank). Put in gas treatment in the tank and full to 1/2 when your ready to run.
There are methods to lubricate the engine without starting it. Others may have some ideas or search on the net. One way to do it is to take distributor out and use drill and flat screw driver to turn the oil pump to circulate the oil. You should get the specifics of how to do this properly.
It would probably be a good idea to use a specific oil viscosity and oil additives to use for the first oil circulation task and startup. Here again, hopefully someone can offer some suggestions for oil.
The other things I do is a complete maintenance on the engine. Plugs, dist cap, rotor, oil filer, air filter, fuel filter. Buy a new battery with max cranking amps. Ensure all electrical connections are clean and tight (POS and NEG grounding).
By doing this you eliminate a lot of potential issues from the start.
Do some testing before starting as well. 1. Verify you have spark at each chamber 2. Verify fuel pump works 3. Verify oil pressure 4. Do compression check on all cylinders 5. Inspect old plugs for oil deposits or any other potential issues 6. Replace fan belts 7. Replace water hoses and rad hoses if they are cracked and/or hard 8. Have rad serviced (dunked in acid and pressure tested 9. At this point just make sure there is fluid in the transmission 10. Consider isolating the gas intake from a plastic gas tank (take the gas lines out of the testing as they may be in poor condition and the gas tank is probably full of crap as well.
Brakes don't work probably because the brake lines are corroded. That means your gas lines are probably bad as well.
Sounds like a lot work but if you just jump into it a try to short cut the process it just leads to more troubleshooting, frustration and a lot of wasted time.
Good luck!
Engine Test Stand Playlist: https://www.youtube.com/playlist?list=PLwoxyUwptUcdqEb-o2ArqyiUaHW0G_C88 restoring my 1968 Firebird 400 HO convertible (Firedawg) 1965 Pontiac Catalina Safari Wagon 389 TriPower (Catwagon) 1999 JD AWS LX Lawn tractor 17hp (my daily driver) 2006 Sequoia 2017 Murano (wife's car) 202? Electric car 203? 68 Firebird /w electric engine 2007 Bayliner 175 runabout /w 3.0L Mercuiser__________________________________________________________