With a Sawzall.
YES.
.035
Yes you can, If it is the same kind.
Your best bet is to hire a locksmith.
The starter on an 89 Chevy Camaro is installed by placing the vehicle on jack stands, attaching the starter wires, and aligning it with the mounting holes. The bolts are place in the starter, torqued down, and the shroud cover attached.
Yes it will bolt right in there with no problems.
The voltage regulator on a 1989 Chevy Camaro is inside of the alternator. If you are having issues, such as flickering lights, you might have to replace the entire alternator.
No you can not. The 98 computer is not programed to shift the 89 transmission. Besides that your wiring harness on the 98 will not hook up to the 89 trans. You need to go back with the factory 4L80E trans. That belongs in the 98.
Nothing, there is no such thing as an 89 Camaro Z28
No, Not on that year. That trans. is computer controled.
There are many places where one can purchase an 89 Camaro. One can purchase an 89 Camaro at popular on the web sources such as eBay Motors and Auto Trader.