Most information online states that the 80286 (or iAPX 286 as it was initially known) was first available in February 1982. But information about it from this time is hard to come by, and famously it was not used in PC-class computers for multiple years after this date.
However, according to the June 1982 issue of DTACK Grounded, it was not actually available at date of writing.
I'm trying to figure out when a homebrew computer designer would have first been able to get their hands on a 286, and roughly what kind of budget they'd need to build a system using one.
When was the 286 first available for purchase by end users (by which I mean when were the chips themselves available, not when the first commercially produced computer using them became available), and what was its cost?