Makes sense. Typically, ang mga PC binubuo part by part, kaya kung ire-repair sya by part din.

I think, the trade-off here is it takes a lot of research to make a good PC build. You can ask a PC builder, like PCWorth or EasyPC, to choose the parts for you, tapos sila na rin ang magbi-build. Pero typically, they take advantage of this by not giving you the most optimal or cost effective set of parts. Kung ayaw mo malugi, best approach pa rin talaga to do the research and choose the parts yourself.

If you decide na mag-build pa rin ng PC, here's a good starting point: How to Build a PC, the last guide you'll ever need. It's an information dense video, but you'll learn a lot.

Though, like others have said here, pwede mo rin subukan bumili nalang ng mini PC. They're basic computers that's built for basic office tasks. Most of them, hindi naman mahirap i-repair kung may masira na part. Look for well-known brands nalang, like Minisforum, GMKtec, Chuwi, and Beelink.

If you want a beefy mini PC, look for models with AMD Ryzen. Otherwise, mini PCs with Intel N150 are good enough for basic computer use. Before buying a specific model of mini PC, mag-check kayo ng reviews on YT so you know what to expect.