What size lathe/mill?

[bentprop]

How long is a piece of string? ;D
Lathe,I would consider the size of the rear wheels,and add a couple of inches"fudge factor".
Mill, the biggest/heaviest you can afford/have space for.Just a personal opinion,of course.

 

[websterz]

How long is a piece of string? ;D

Twice as long as half of it.