@GeekyGirl36 i am glad to help 🙂 sorry for my delayed response, it sometimes takes a while for me to get some spare time for everything...
I think if you test doing this on your own is a very good idea. To set up a virtual Ubuntu you can follow this guide for example. This is generally something i can only recommend because you can, after setting up VirtualBox, download images from various flavours and see which desktop experience fits your needs the most. (if you have time i would recommend "vanilla" Ubuntu 16.04.3 which comes with unity 7, KDE Neon 16.04 for the KDE experience and maybe also Ubuntu 17.10 which uses GNOME by default as well as testing the vanilla 16.04 with the Yunit desktop installed to get the Ubports feeling) You can delete every Virtual machine(VM) after trying out a little and just create a new one for each distro so you don't get the "frankenstein" experience ;-P.
If you then decide on one of these, you can set up a new Virtual Ubuntu, copy your image and the isorespin script into shared space with that VM, chmod the script and execute it. Then burn your image to a thumbdrive (for example using https://etcher.io/) and install the Ubuntu flavour of your choice on your tablet/laptop.