Mum lives abroad and can't come wedding dress shopping with me

My mother lives abroad and we have not physically seen each other for over two years now. We have a great relationship. We didn't use to-- in fact, it took years for my mum to warm up to the idea that I was leaving home and finding my own feet, and getting engaged to be married. When I first got engaged she was so quiet and closed off and wouldn't ask about the wedding planning. I had assumed the worst and asked if she wanted to be involved in the wedding, to which she said of course she did. She said to me that she only felt I was growing up before she was ready to let me go. I love my mum and regret that I ever doubted her in this. She's been trying to be involved in any way she can ever since, providing support however she can. We both wish she could be more hands on with things such as menu tastings, but this is not feasible as we are thousands of miles away from each other. She is based in Southeast Asia while I am based in Scotland, UK.



My wedding date is next year in March 2022. A lot of the planning is underway and it is coming to the time where I would need to shop for a wedding dress. We are planning to do this as soon as possible as we anticipate bridal shops will be very busy once things open back up.
My mum had previously expressed strong feelings for being there for the day I try on and buy a wedding dress. I agreed- we both feel this is a sacred moment between mother and daughter. Unfortunately due to the covid pandemic, travel restrictions and lockdowns on both our ends with undisclosed or tentative deadlines too far away mean that this may not be possible.
We've talked about having her there when I do try on wedding dresses via zoom. She's insisted I bring my MIL with me and my MOH. I had initially planned to bring them along with my mum for this. Now though I find myself hesitating because if I can't have my mum there, I feel it would be unfair to bring along anyone else. It's a difficult situation as I also know it would mean a lot to MIL and MOH to come, and I know I would love them to be there-- I just wish my mum could be there too.