3 bits of 250 by 1220 by 40mm t-slot, 1220 16X5 threaded rod and isel ballscrew, plus

[nobby]

1220 by 38mm thk or boshe whatsname rail

16 by 5mm threaded rod needs to be 1250 and have 30mm of 1/4'' 6.35 shaft
must me an isel 16 by 5 ballnut

[nobby]

please note IF you 'just happened to have a complete bed, that would be smashing
my ball nut is knackered so I have to take it apart, so mayaswell lengthen it a bit