It's going to be tough on that budget.
SolidWorks ideally needs a GPU on the recommended list and they are expensive SOLIDWORKS Hardware Certification | Hardware & System Requirements | SOLIDWORKS . We have a laptop at work that has an unsupported GPU, and it's fine to use for smaller assemblies and parts, we use it when travelling to China. When using that laptop it pays not to have too many SolidWorks parts and assemblies open in the background but it's usable. It can't run "Realview" and I wouldn't have ambient occlusion turned on, but that stuff is mainly fluff.
At home I have a 6-year-old Dell M6700, it can run SolidWorks 2017 well enough to get work done. I just did a quick search on eBay (here in Perth Australia) Dell M6700: PC Laptops & Netbooks | eBay and you can now get it for less than $400 6 years ago that laptop cost around $5,000.
The good news Moore's law is dead, single threaded performance hasn't improved much in years. Single threaded performance is still king for general SolidWorks, so the fastest CPU versus the number of cores is better.
So my advice search eBay for a "Dell Precision" and spend as much as you can, you'll hopefully get a supported GPU.
With this budget you can buy a laptop PC but you can't get a workstation.
I mentioned this to a laptop PC. (cheap).
i5 processor 3Ghz (HQ)
graphics card 1gb, without share. (GTX)
This is an amateur PC for SW, simple and cheap for simple drawings.
I think Dave Bear 's advice is nice.
If you find a clean and sturdy PC it will cost cheaply.
Might be better if you told us what specs or upgrades you would buy that machine with.........