So... you plan to make large fornat still life photo's in a studio setting.
You have one Elinchrom Style rx1200 studio flash unit.
Sounds like you will not be making photo's in very stressful and/or dynamic situations, you will have time to take it easy. Basically, any light stand will do in such circumstances, even the cheapest. All the light stand needs to do is keep the flash unit in place.
I use pretty large and heavy flash units with very simple and cheap light stands without any problem in a studio setting.
Here's one that I found on a local (Dutch) website, for only €7,95 incl. VAT:
https://www.tradeshopping.nl/fotostu...80-200-cm.html
Of course, the build quality is crap, but for your intended use it may serve you well for years and when it breaks down, just buy a new one.