Hi Joanna,
Thanks for your interest in my post. I will be going to western Nepal next year, and I think technically the peaks in question are in the Mid-Western Development Region (as opposed to the Far Western Development Region).
Are you doubtful that you would actually be able to do this because of timing/scheduling or because of technical capability? Based on my research, I don't think the peaks would be more difficult than Mera.
Let me know, and thanks again for your note.
Matt