Intel was seling 386 CPU up until 2007. I personally was using brand new special equipment with 386 soldered to custom MBs with no VGA, serial only access.
I suppose you can purchase such boards from ebay/recyclers today.
Book 386 is a ready notebook. It mainly targets gaming, so it has speaker, OPL3 sound and MIDI/GamePart port. But also ISA as yet another "port" on its outer side.
