File stacking limit or alternative method

I’m in the process of putting years of family home moves onto my Kodi set up so my kids can look back at things they have done.
I have a folder that contains a lot of video clips from various mobile phones / GoPro / Video camera sources. A lot of these are very short and quite random so i would like to play them one after another.

I have named them to use ‘File Stacking’ but all the tutorials i’ve seen point to this only working of files A-D or 1-9. My folder currently has 30+ clips and is growing.
I’ve tried naming RandomClip-part01 , RandomClip-part02 , RandomClip-part03 …………………… RandomClip-part30 and created and approriate nfo file so they show up in my library.
This method works ok but not consistently , sometimes 10 or clips will play , sometimes more , sometimes less.

Anyone else have any suggestions as to a better method to solve this problem.

Cheers
Gav