Didn't get a pram, but got a travel system buggy which could lie flat with a cosytoes to keep the baby warm, and the car seat (never used them together so wouldn't bother doing that again but just get a separate buggy and car seat if it worked out cheaper).
Some buggies don't lie flat and can only be used from a few months old, so worth checking unless your friend already has access to a separate pram. I know lots of people like slings, but they didn't do much for me.
Cot was £30 from an NCT sale, and we bought a new mattress. I don't like tiny babies in anything other than white so stocked up on white vests and babygrows - in fact at the time found the asda and tesco ones softer than M&S etc. Any outfits and patterned stuff was given to us as gifts after the baby was born. Oh we did buy muslins, cot sheets, a couple of blankets (but were given others) hats and a snowsuit thing from TKMaxx as it was January.
We did spend money upfront on washables too, but other than that I really don't think we bought a lot else. Moses basket was second hand but can't remember if we bought it or was given to us, and we bought a new mattress for that too.
Bought breast pump but used it twice, and bought bottles (and microwave steraliser) which didn't use for the first few months - but to be honest even if your friend is planning to bf I did find it reassuring to have the bottles etc to hand in case of problems.
Both my children hated the bouncy chairs etc so worth your friend seeing if she could borrow things like that for a short time to see if its worth buying.