179k is just getting broke in for a 1FZ. And that engine is HEAVY, so you'd need a substantial engine hoist, etc. I'd do the important hoses, drain the cooling system and flush well, and leave it at that for now: radiator hoses, the PHH, the heater valve hoses and whatever looks suspect. Check for good sealing around the radiator and fill with foam and/or Gorilla tape as doing so will lower water temps several degrees. Consider getting some sort of ScanGauge to closely monitor water temps unless you really enjoy doing head gaskets. Inspect the lines to the rear heater for corrosion. There is also a mod for the instrument panel's water temp gauge that does a much better job of keeping track of water temp that can be done.
A new set of plug wires is a good idea if still original. The front pads wear much faster than the rear and that's OK but make sure you still have good ones and the rotors are running true. The brake system will need a flush unless the service records indicate this has been done. The air filter can be cleaned and reused, but might be wise to just R&R unless the records/inspection suggest otherwise.
The OEM Tokico shocks perform well at a reasonable cost, so easy to do. If the ride is suspect a new set of stock height Old Man Emu coils is useful (likrly cheaper than OEM) and with new shocks will greatly improve the ride unless you plan on lots of extra weight soon. Be sure and juice the mounting bolts, especially on the rear, for a few days prior to working on that to save a lot of grief.
If the power antenna is not working, you can replace just the mast to save a bunch of money. If still not working, check the head unit wiring for correct hookup to make it work.
For the seat not working, Gamaviti offers a solution, just be sure to get the drive screws to run in parallel when fixing those gears.
EDIT: Assess the looks of the balls holding the Birfields on the front axle. Nice and greasy is good, but sloppy drippy greasy is a sign you need to service the whole shebang. In any case, still a good idea to pull and grease the front wheel bearings unless you have service records indicating this was done within the last 30k. And check those knuckle nuts are tight.