My first PC was an XT Clone I suspect around the same time, One of these https://www.computinghistory.org.uk/det/15452/Olivetti-PC1-P...

I adored that thing (coming from a ZX Speccy it felt like a proper computer), I've considered buying/tracking down a non functional one and putting a high performance ITX build into it a few times over the years.

https://www.youtube.com/watch?v=qe77esw9-nU (PC1 booting into a game) - that instantly takes me back more than 30 years.

EDIT: I forgot, one came up on Adrien's Digital Basement a while back - https://www.youtube.com/watch?v=ou-_sHTxwc4

One can build a really close approximation with 86box; in fact, you can build an original 5150.