The washer hose is cheap, its sold by foot length at almost any parts store. Why leave fossilized items on your car?
That squeezed pipe is actually the pcv and vent hose together, its supposed to be a T shaped hose.
Yours looks like it is a straight hose that has been bent to fit. If. Its straight, how is the pcv working?
The tactory fusible wire links are still sold as new suzuki parts, they are also found on mehran, bolan, ravi etc, the strange square plug with a wire loop behind it, its actually the main fuse for your cars wiring. And for new battery cables you can buy it by the foot from plaza market, you dont need crazy thick ones either.
If you cannot find the factory fusible links, you can buy a small aftermarket fusebox that hangs from the battery terminal. The way suzuki wired this car was starter was direct to battery and alternator had a fusible link at positive, the later model cars had the fusible link at the starter as PS redesigned the main cable and branched the alternator to the starter main lug: