Aortic and Mitral Valve replacement together?

I am 74. I was diagnosed in August with severe aortic stenosis, regurgitation and calicfication AND severe mitral valve stenosis, regurgitation and calicfication, plus they want to do a aorta bypass even though it is only 60%. Can only be done open heart from the initial conversation. I started having symptoms in August 2025. The day of all the testing they wanted to do the surgery ASAP which originally I agreed. Then that night I thought about it, did some research and decided I was not ready for it. Baffles me that it was so important to do ASAP until I put the brakes on to catch my breath. Now here I sit waiting for the appointment the 14th.
In the meantime I have done a lot of research, watched a lot of videos and have a better understanding of what is going on. Until I get the date and find out what they will do - a TAVR aka just the aortic valve or open heart since the mitral is so bad can only be done that way - I have planned as much as I can. I did find with both the aortic and mitral in such severe condition, surgery needs to be done sooner rather than later. I have read some online that doing 2-3 procedures at the same time is not wise but I want it done.
I live alone, have no one to help, live in an RV which was not in a condition to be left the day before to sit for a few weeks. They did tell me because I live alone I would go to rehab after I left the hospital, which is fine.
After I hear them out on the 14th, I may seek out a second opinion if I am not feeling good about them. This will be in Phoenix which is 150 miles from me.