I would recommend this desktop pc, it should last you at least 8-10 years barring anything physically breaking.

HP Pavilion

About this item

• GAME ON YOUR OWN TERMS – This potent PC keeps up with you and the games of tomorrow thanks to its powerful intervals, support for a second display, customizable LED lighting, seamless expansion, and easy upgrades
• DURABLE AND STYLISH – Not only does this compact desktop tower perfectly fit in any space, but it’s been designed to last with 230 quality tests to its name (1)
• HIGH-SPEED PERFORMANCE – Whether you are playing the latest games, designing the next skyscraper, or crunching scientific data, the AMD Ryzen 5300G desktop processor can handle it all, setting the bar for gamers and artists alike (2)
• PHENOMENAL GRAPHICS – Your favorite game titles look incredible and will run at their highest-fidelity thanks to the power-efficiency AMD Radeon RX 5500 graphics card with 4 GB GDDR5 dedicated memory
• MEMORY AND STORAGE – With 8 GB of RAM, everything from multitasking to playing games gets a performance boost (3); plus, with 512 GB of PCIe NVMe M.2 Solid State Drive storage, you’ll get up to 10x faster performance than a traditional hard drive (4) (5)
• USB PORTS – Quickly and easily connect a second display, external storage drives, and all your accessories with 4 SuperSpeed USB Type-A and 1 SuperSpeed USB Type-C (6) ports on the front of this PC, and 4 USB 2.0 Type-A ports on the rear (7)
• WINDOWS 11 HOME AND WARRANTY – From a rejuvenated Start menu to new ways to connect, the Windows 11 Pro OS is the place to think, express, and create in a natural way (8). Start every day with confidence with a 1-year limited warranty to protect your purchase

Here you go this is a good laptop that should suit your needs pretty well.

About this item

• Sleek and super-lightweight with an exceptionally comfortable keyboard.
• 13.5” PixelSense touchscreen for ultra-portable productivity.[2]
• 12th Gen Intel Core with Thunderbolt 4 connectivity and all-day battery.[3]
• Warm, sophisticated Alcantara or edgy, cool metal, and bold colors.[2]
• Studio Mics and enhanced camera experiences, powered by Windows 11.
• Cinematic entertainment with Dolby Vision[4]and Dolby Atmos.[5]
• Windows Hello, built-in Windows 11 security, and secured OneDrive cloud storage with Microsoft 365.[1]
• Play hundreds of high-quality games including day one releases with Xbox Game Pass Ultimate.[6]

Surface Laptop 5

Amazon links are affiliate links

With UPS batteries, you really don’t want to cheap out. APC is the commonly recommended brand, here is a link to some basic ones, they will give you about 30 minutes of runtime and provide surge protection.

APC Battery Backup

Here is one that will provide 40-50 minutes

Larger Backup

Amazon links are affiliate links

These are links to amazon pages with a good desktop that will last you at least 5 years (barring anything crazy) and a link to a 1 time purchase of Office. You can also buy a yearly subscription from Microsoft if you would rather go that route.

Let me know if you have any questions!

HP Desktop

Microsoft Office

Amazon links are affiliate links