That’s not vintage, but still interesting.
If you visit Geoff’s site (see related link below), you will find infos about the ARM7-based Home Computer from Geoff Graham. It uses an SD-Card as a storage, and it needs a PC USB-keyboard and a VGA monitor. A nice case seems to be also existing:
A detailed description of the hardware features can be found at http://geoffg.net/CMM2_Description.html. At least it will run with a 480MHz CPU, that should be fast enough.
It uses MMBASIC, which is a modern BASIC interpreter also with some structured computer language elements (no need for line numbers).
Just take a look at it and judge for yourself if it’s worth to be used.
P.S.: There are 2 articles existing in a Magazine named „Silicon Chip“, see http://www.siliconchip.com.au/Issue/2020/July/The+all-new+Colour+Maximite+2?res=nonflash …
P.P.S.: You can buy also kits >here<.