I have a female friend who said, "I'll hit the gym" and it was pretty well received... but she followed it up with a serious answer by saying stuff like, "Although some reductions require brute force, a lot of them are all about angles and position - and as long as I have a stool and a good view, I'm confident I can reduce most things. For those that require brute force, I can always call on the help of my colleagues..." Something like that... she actually told me that it's a farily common question for her, so having a good response would probably be a solid idea.
I think you will be ok with your size/weight. While on my AI, I rotated with a resident your size and she did fine with the reductions. Another attending was your size and she did fine.