Thank you Rukaya :)
You don't need to worry about the HS Spa, since as I said in the first post, any store item i have included that you do not own, will not show up in your games. The HS spa lot can be used as an extra community lot for future EPs, or can be changed to residential as a 3rd Legacy lot as i've set the appropriate additional value for that sole purpose.
And the world also has 2 additional spa's especially for those without HS. The additional Spas are the pets one and the sunflower one that came with either ambitions or Riverview.
I was also able to download the gumball mashine seperately ( I have the compilation and weirdly enough the site recognised that objet as owned individually.) which came in handy as i currently have installed only the items i'm using in the world and nothing else to avoid adding a store item that I wasn't planning to.
I'm going in game again in a few and continue building :)
