I purchased these about 5 months ago for $60. The price and availability is volatile right now but keep checking back. I saw last week the black pedals were $120 but the white pedals for $60

Very easy. These are the ones I used:

https://www.amazon.com/gp/product/B000KC3Y0G/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1