HiCustomer my name isXXXXX and I can help you with this.
I like your car even if the parts are pricey.
If I remember your model has two Amal Carbs on it and uses Mineral Oil as engine and Air Ride lube and it has a $4500 Ignition switch assembly.
Been there and done that.
Because your engine is a Hybrid, it is some of this and some of that. The block is Cad, the carbs are English and all of it is expensive with lower ball joints at over $85 wholesale and suspension modules at over $250 each.
My advice is to have the radiator re-cored, replace the water pump, with the 500 cid series one that it came with it, if you can find one outside of RR.
The fan is probably ruined so that also will need to be replaced but you may be lucky with the other stuff you mentioned.
Let me know if there's anything more I can do, or if I missed something, and
Thanks for using Just Answer
Because you mentioned ONLY ESSENTISAL parts, they will all need to either be thoroughly inspected for damage or replaced outright.
Any wet wiring will need to be dried, probably already done, and the contaminated oil replaced with a new oil filter. Are those filter elements still @12?
A tune up will be necessary and a new set of points/rotor and condensor may be needed as well. They aren't indicated and these engines seem to last for ever but only when they are taken care of.
You also mentioned "Water in the Engine".
This is a little scary since there is no direct path for water to enter the engine unless it enters thru the air intake or an opening thru the oil filler hole or a vacuum line.
Can you explain a little more here?
As to repair cost????
Not knowing the price of a new water pump or the damage to your radiator or the cost of new fan or the extent of the water polution I can't even make an educated guess, except to say, over $400 and maybe up to $900 for the parts, minimum for parts and fluids, etc., providing I have a complete parts list.
Knowing how water got into the engine is info I will want here.
Since your car is a year older than the EPA mandated emmissions stuff, that won't be needed, but there are a lot of unknowns here.
Since you're online, and there's info available today that wasn't available when I had mine you may be able to locate parts cheaper than I could in 97/98.