So my story is the same as your... Had a kid, wanted to lift at home. My setup is: pull up bar with bands, dip bar with belt and kettlebells (2x of 4, 6, 8, 16, 24, 32, 40, 48, 56, 68 kg and 1x of the sizes in between from Rogue). You can definitely bulk with this setup. With this I can do basically everything; pressing, pulling, arms, deadlifts, squats. DB are better for arm work because they rotate, so as a workaround I use a KB hanging from a cable handle that rotates and is attached to the KB via climbing band and carabiner. 1RM work is very tough with the KB, but rep maxes are easily doable. Typical KB exercises I use are: RDL, front squat, hack squat, dead lifts, lunges, step ups, bridges, OH presses, floor presses, floor flys, tri extensions, curls, hammer curls with rope attachment, bent over rows, reverse flys, shrugs, laterals raises, front raises, etc.