Billy
I have a green one I bought in the 80s, but I think it has been through a couple of incarnations and colours since then. I'm not at home at the moment but I could dig out the manual tomorrow when I get home if it would help. But mine has a 3/4hp motor with 5 step pulley, and a 3/4" x 16tpi spindle. I think the bed is 48", From memory I think it was available in 2 or possibly 3 bed lengths. Chuck's and face plates should be very easy to source, Axminster, Toolpost and Yandles to name but three. I don't use it anymore and it is in bits but if you are close to me you are welcome to come and run a tape measure over it, i am in Bedfordshire.
Regards
Mike