Thanks to everyone for the great advice here, much appreciated.
The only problem with things that plug into the CPU made for A500 sockets is that on the A1000 it's right up against the left side of the casing and so may not fit. I've seen the Ad-IDE card on a 25th anniversary Amiga video someone posted here in their A1000 so it's is possible if a bit McGyver in construction. 030 and IDE adaptor on the 68000 socket could be a nightmare for dry joints/shorts I admit but the HDD is essential really.
As long as it auto boots after kickstart is loaded and survives a warm boot that's good enough

It's to help me doing my game I am working on. In 6 months I will probably retire after 'Achieving Hampstead'. And I like KS 1.3, happy happy memories as strange as that sounds and the white/orange/blue combo rocks!
My A1200/600 is not as nice to type on, and my two A2000s are dead and they used clunky old 40mb SCSI drives. Alright for 1990 but erm.....anyway

I will keep a saved worldwide search on fleabay and wait 18 months then I guess.