Yup, a bandsaw is what you want, unless its for non-model use.
I have two, a cheap 12″ throat 2-wheel job from “machine mart”, and a much larger 1Hp job by de-walt, for cutting tree trunks up to make dug-outs.
The small ones I find dead useful for, er, small stuff and nadgery bits (delicate work), It also takes strip sanding paper for ….sanding !!!
If I only had one, it might be something inbetween, able to take thinner blades for delicate work and thicker ones for hewing scaffolding boards into battleship decking (model).
BUT if you want air-portable, i think you may be LUMBERED (pun) with a smaller/medium sized model .
Without doubt the most useful woodworking accessory next to the cup-of-tea maker.
I might shy away from an Argos machine….Machine -mart market their own (cheap/resonably priced) models under the “Clarke” name, and I have not had a problem with them. Admittedly not the best, but good value for money, and easy spares backup. Look up their website for more info.
Ashley