Good luck! I narrowly avoided it, consultant had a big wobble about fix or wait so I decided we’d wait and it worked out alright. The recovery path was pretty similiar, reconstruction would have been slower starting before I got into physio but then my leg’s all sorts of messed up anyway so that slowed things a lot, maybe it came out equal in the wash. I wasn’t cycling at the time, ironically, but I was day-to-day normal after maybe 3 months. I wouldn’t have wanted to push it too hard on the bike til further down the line, there can be a fair amount of twisting in mountain biking. Your aftermarket leg should be stronger than my oem one though.
Don’t know if you’ve done the rehab thing but the most important thing is, make absolutely sure they understand your goals- different people want different strengths and levels of recovery. ACL is a fairly active-person injury so there’s good rehab channels I think.