Personally I think socket-7 Pentiums are easier to set up and work just as well for DOS as a 486. They're also easier to get hold of.
I'm planning a YT video / tutorial about building a SS7 based hybrid / vintage PC.
I do care about an authentic experience in terms of image, sound and performance but not fussed with having authentic / original case, parts and all of that.
I like the convenience of modern parts such as ATX case, ATX PSU, PS/2 mice, modern storage options (CF, SATA drives and SSD), 2k compatible BIOS. And yes, I don't miss the CRT screen either...
I have two SS7 machines, both running a Pentium (non MMX) and clocked at 100 MHz. With Cache disabled they behave like a 386DX and so far I haven't run into anything that doesn't run.
For the "end of 80s to early 90s" era, which is my nostalgia time, it's the perfect solution.
For late era DOS games, I would also recommend a Slot 1 machine. They are even easier to work with, best of all, readily available for little money. E.g. a box for Doom, Duke Nukem 3D, Blood and all of these games.
They just don't work well with speed sensitive games.