Even being able to generate enough lift to send a payload into orbit would be an amazing advancement. We can solve propelling craft out of the solar system later, first we need an economical way to get off planet that isn’t just burning fuel to lift fuel.
It’s a six year old system. Optimistically you’ll be able to salvage the PSU, case and storage. Whether you should salvage the PSU and case is up to you, prebuilts aren’t known for picking the best of these.
Personally I’d use the machine for something else (or sell it to someone for $300-400) and build what you want. (Edit: I’ve had good results moving the core system components into a USFF or NAS case and repurposing as a home server. That’s a pretty typical end of lifecycle role for an aging gaming desktop.)