Well, it's all installed, blimey it's tiny.
Had some fun and games getting it to boot after cloning though, everything seemed to go ok, restart, into bios, select new drive as first boot, f10 enter.
no boot drive please restart and select etc.
Reselect original SSD, boot, format, re clone, repeat, same result. Aw shucks.
after much wailing and gnashing of teeth, I 'discovered' a boot option that said 'legacy+uefi'. Changed it to UEFI only, select NVME drive, F10, enter, and off we go all working fine.