Alternators are risky but I had good luck ordering from https://elartcom.eu/ Got a new Bosch-style one for Focus mk2, price was about 35–40% lower than here. Also took a starter for another car later. Both arrived in 10–12 days, well packed. They give 1–2 year warranty on most electrical parts. Fitment was correct, no issues after 4 months. Catalog lets you select by engine code which helps avoid mistakes. Not ultra-cheap Chinese stuff, but reliable brands at sane prices.