clutch master, slave cylinders and ignition key lock cylinder

[95se]

I need to get new ones. I have looked at the online wholesale parts stores and was wondering if it mattered which ones I got or all the oe or oem the ones about the same in quality. For the clutch master cylinder I have found these brand names:

Nissan Parts Wholesale Nissan Body Parts Discount OEM Replacement Auto PartsBeck Arnley direct-fit oem replacement (free ship) $65.Sachs oe replacement 32Raybestos stock replacement 32Nabtesco (free ship) 75

on 1stnissanparts.com they don't have a brand name. They are just listed: master cyl for 87 and slave cyl for 37.

Also was told I need an ignition key lock cylinder which is causing my car to be a little slow in starting. Trademotion.com lists it under that for manual transmission for 128 and nissanpartspro.com lists it under only for auto transmission. But then they have a beck-arnley key, lock and ignition switch assembly (dir fit oem replacement) for manual tranmission for 161. Don't know if thats the same thing or not.

Also, none of these note if they are new or remanufactured.

thanks