I found a recommendation from a youtube comment, (I can't remember the actual video):
https://www.amazon.co.uk/gp/product/B08J7Y2S1P/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1
It's a bit fiddly and not as pretty as it could be. I need to trim those stays with a Dremel. Here it is on an M1.