Need held with most logical order of repairs recommended.

Sounds like a bunch of things building up due to age and maintenance needs. The repair facility should be able to list things in order of "need" versus "recommend" versus "performance upgrade". Being that they have seen your Toyota they should be in the best position to advise this. Questions I would have -- How old is your drive belt? At 20 years old it can't be original. If somehow it is, that's first. Valve covers need to be assessed as to severity of the leak. Scale of 1-5 where 1 is seeping and 5 is pouring out -- what is it? That would answer that question for me -- 1 or 2 would be "wait" and 3-5 would be "fix".. Suspension linkage - what does that mean? Shock absorbers are a performance upgrade -- not a bad investment but not often a "car down safety issue". "Bushings are tearing" - which bushings? And yeah, in 20 years, rubber dry rots. Again, not something I'd consider an "emergency" but a definite "recommend". Spark plugs should be done every 100,000 miles minimum. When were they done last? Air filter - every 15,000 miles or so - when done last? Power steering fluid - NOT a published maintenance item. Not a bad idea, but not a safety or immediate issue. Brake fluid - every 2-3 years -- when done last? Don't be so sure you can do the spark plugs -- might be best left to professionals. www.repairpal.com/repair-shops