Way back when I was learning the ropes with my dad we bought a 7 tonne Iron Fairy yard crane which is a very similar layout to yours. We really paid scrap money for it because it needed a lot of work, and we gave it what it needed without spending too much time making it pretty. That crane despite being higher lift capacity than yours didn't have outriggers, which really limited it for reach.
Nonetheless it was an extremely useful machine to have around. Did some pretty sketchy things with it and somehow managed not to kill myself or anyone else. We bought a Binns and Berry Trident L1000, which is a big machine, and put it in with that crane, hovering the lathe half an inch off the ground, at way too big of a lift radius to get it through the door.
WAY overloaded, almost had the rims on the ground, I was convinced the tires were gonna blow, but somehow they didn't.
Edit: not my picture but this is the same model Iron Fairy: