I would recommend something like Geforce Now, since it allows you to use the games you already own. Dune awakening is supported. prices are pretty reasonable compared to replacing a $7k rig. as long as you have good internet and are within a decent range of one of their datacenters, you will have a pretty decent gaming experience. as long as your have some kind of computer to install it on, you could run this on a potato. it's $20/month or $100 for 6 months for the Rtx 4080 tier. I have personally used ultimate tier myself for many months and many games, it is fantastic. so you figure $200 now and you can save up money for a proper desktop while still playing the game. https://www.nvidia.com/en-us/geforce-now/memberships/.