Yes, recommendations on all of your points.

As to the saddle, start with getting your sit-bones measured. Lots of threads about this topic to give some guidance. Your seating comfort might not be on the most expensive saddle available. Racers' saddles can be very pricey, trying to shave weight. You might prefer something with more padding, more weight, but less money. Keep an open mind.

As to chamois creams, lubes can be very helpful. If you keep them away from the soft-tissue area, you should be able to avoid yeast infections. Some even come with a warning not to use in that area.

As to shorts, be prepared to spend some money here. I believe better shorts cost more because they allow you to sit on the saddle longer. Try some different vendors to see whose chamois you like best, cause the guts of a short are the chamois pad.