If you are having trouble starting it when cold you might be looking at replacing the cold start valve, the thermotime switch or the air meter. A little time with a voltmeter and a shop manual will tell you a lot.

The high pitched whine is a bit of a problem, though.

Beck/Arnley was once the ONLY place to pick up import parts. I think they were a nationwide chain and I can remember buying parts from them back in the 70's when if you needed a part for a german or italian car everyone just laughed at you.

B/A was a very good source for parts during the early 80's as well. I picked up a 280Z water pump for about 30% of the dealer price and it was OEM Nissan.

But I have not bought from them for a long time.

If you are looking for an electric fuel pump you may be shocked at the price of a new one. Unless you just must have OEM there are alternatives out there on Amazon. Made in China stuff, but they work. I have not purchased one for a 108, but the standard in and out pump used on a lot of older VW's is about 10% the price of a new OEM if you go the China aftermarket route.