Hi
I don't know the pros and cons of an ooph versus chemical ablation because I just went ahead and got the ooph. I was 46 at the time and the operation is almost 4 yrs behind me. I was in chemopause when I made the decision but by the time I got the operation 6 wks later, I got my period back (twice and very regular). I was not concerned with fertility anymore either and, like you, I had a thickened uterine lining. Secondly, I was only moderately ER+ and PR neg so Tamoxifen usually doen't work very well with a pathology like that but an AI tends to work better (and they do work better than Tamoxifen in general). I really wanted to take an AI to give myself the best chance so I went ahead with it. It is a simple procedure and doesn't cause very much discomfort at all. Recuperation is a breeze.
Since you know you feel nausea afterwards (as I did) just make sure you tell the doctor and the nurses. I "came too" and felt alittle sick and they immediately put something in my IV drip and it was gone instantaneously. Someone else will be able to give you good information on Lupron or Zoladex. I didn't even want to consider the option since I also wanted the ovaries out because my paternal grandmother died of ovarian cancer and I didn't want to take any chances with getting that next
I had the ooph the way you described (laproscopically - and there is absolutely no telltail signs outwardly that I did).