Complete bushing in one piece

I am planning to invest in a roll of Nylon12 filament and a 8 mm hand reamer (as shown in the picture). i see lots of nice designs of printable bushings and bushing holders. So my thought is why not combine them and print them as one piece. Use a 8 mm hand reamer to ensure a perfect fit. I know from past experience that nylon can be reamed very well when using a lubricant and will make a perfect H7 tolerance. You can lubricate the bushings with WD40 dry PTFE lubricant when needed. I think they will last for a long time and when they should wear out just print new ones.
Please share your thoughts about this idea in the comments.