In a 6 x 4 foot shop, the usual 4 1/2 inch Bandsaw is likely to take up too much space. Mine had problems after a while (since rectified) Its predecessor was a small Bandsaw, intended to fit under the bench when not required, but after two faulty ones (and a lot of money spent replacing broken blades) went for this one.
Being almost too heavy (50 Kg ) to lift in and out of the narrow aisle in the shop, (Mine is not much larger than Ron's ) so lives outside, under a cover made from the material used for curtainsider trailers. The cover reaches almost to the ground, and a spray of oil keeps rust at bay
With little space available, it seems that reciprocating machine is needed.
These have the advantage of using the blades from "normal" hacksaws. But probably means that one will to be manufactured, either from drawings, a kit, or from scratch. When I looked at this, the most expensive component, by far, was the electric motor and integral gearbox.
HTH
Howard