Yeah, you're gonna need to do more than that after 10 years.
I would carefully inspect all hoses and fittings for corrosion. Replace if needed.
Flush everything. Condenser, evaporator, all lines, compressor.
Replace all seals.
Replace the drier.
Reconnect using new seals.
Pull vacuum, test for leaks. Do not run system.
Add proper oil to compressor.
Charge system with R134a
Check pressures, exit temp, check for any leaks.
Here's all of mine.
My failed compressor
On the seals, I bought a "generic" kit that came with a bunch of them. I simply compared the old to new.
There's no "orifice". Its an expansion valve. It connects directly to the evaporator. In the pic above, it's the rectangular block.
According to the law, you need to change both ports to the new type to prevent accidental charging with R12 in the future. There's also a retrofit label
Your dryer may have a funky looking disconnect on it. It should look like this:
Make note of it's assembly and orientation. Apart it looks like this:
