About $500 for the complete "floor" (floorboard and toeboard).
If you have the tools and the skill and the time, make your own.
If you have the money, and cannot do your own metal-work, and you want it to look somewhat original, and you do not want to hassle with locating cut-outs and holes, and you recognize that you will most likely have to deal with the frustrations from fixing poor-fit-issues, then buy the "repo" floor panel.
