Can someone provide a list of how much each item that is relevant to this technology is likely to cost? I’d really like to know how much each laser, pellet, me

Can someone provide a list of how much each item that is relevant to this technology is likely to cost? I’d really like to know how much each laser, pellet, metal case, etc will likely cost in this and how difficult it will be to create each one. I would have to imagine that these lasers will be the most difficult part of all of this. It will also be good to know how long each laser lasts and how much power they require to operate effectively.