Sorry I cannot help , and judging by the number of views but no responses there seems little info. I put on Koni inserts a year or so back which required a bit of angle grinder work, but all in all was pretty straight forward. If you cannot get the info you need and hence are not comfortable with the project, you might consider Koni instead. I seem to remember the instructions are here on the forum.
Edit ..... it looks like I was the last to post on the thread in 2020 (doesn't time fly??), it goes under the imaginative name of "Front Struts" ... just search for Koni from the top of forums and you'll find it.
You'll also see commentary about Koni vs Bilstein .... my thanks to Jack, MCL, and others for that thread, really supportive!
Good luck