Hello albachips!
I have seen the Solidworks files and it seems you want to simulate the crane stand and find the assembly safety factor and/or the maximum translation of the free end, am I right? Well, you are lucky I found you because I can help you design your model right away. I already know what's wrong with it and how you can correct it. Please contact me for further details.
I speak and write English and Greek fluently, whichever is more convinient for you.
Best regards
Antonis