Megan - we mainly use microfleece liners.
I did just that and cut up material from Spottys. I think 50 cost me about $3-4 lol.

I have just bought flushables (imse vimse) ones to try for out and about and DD has been having toxic poos and i hate carrying the sloosh around for hours... and sick of throwing out my MF liners lol.

I have wool covers and dont use them very much, i prefer shorties and longies. I love llamajama ones. They are such good quality. BUt i have also knitted some myself - if you have the time (i did them while pregnant to pass time lol).. and used 12 ply wool and they also work a treat!

i would suggest upsizing a little with your wool covers for the newbie as esp over night nappies can get a bit bulky and you find the nb or smalls just dont reach all the way over. day on less bulky nappies are fine though.

HTH