How much 5mm work do you intend to do? pushing the limits a bit, especially with the 135.
It won't be great on any hobby machine, but you have to think of how much actual welding time you do, compared to setting up, cleaning back etc etc.
What sort of work have you got planned?
Nothing to heavy mostly playing around at first thought about TRYING to make my dad a bbq or a logburner from a gas bottle. x
Yeah, A Clarke 150 is what I would be aiming for as a minimum, unless you have some readies stuffed under the mattress, then it's got to be a Portamig 185.