Depending on how many you need, you should consider building them yourself. I just ordered a new Zen2-based build from alternate.de in parts and I think that's the way to go.
to clarify, these are vetted parts lists by a leading german computer magazine, complete with optional upgrades, videos to aid with the build process and even detailed BIOS settings.
This will fit together and is stronger than with a GTX 1050 Ti. If you really want a gpu powered only by the motherboard step down to a GTX 1050, or look at the (rather overpriced) GTX 1650 (though it depends on the model there). Mail is in the profile if you have questions.
Internal Server ErrorPower supply, motherboard, SSD and Ram will "just work", given you buy a recent product from a known brand. The +/- 5% of whatever will not make a difference to most people.
For mobo, think of features you must have ( built-in wireless?) And that will direct you.