help advice design construction frame small gantry crane for chain hoist

aiuto consiglio progettazione costruzione telaio piccola gru a cavalletto per paranco a catena
Ciao, per motivi personali dovrei riparare una macchina agricola, non ho una gru, un carrello elevatore e molti soldi ma ho bisogno di riparare questo trattore, dicevo che mi servirebbe una struttura robusta per fissare saldamente un paranco a catena e smontare le parti meccaniche più pesanti, qualche suggerimento, magari dei tubi, delle travi a H, se magari qualche amico utente ne ha una, potrebbe fotografarla, misurarla e darmi qualche consiglio, grazie. Ho una saldatrice elettrica per poterla costruire, grazie

English only please.

sorry, as I said in the previous message, I would need to make a cheap frame to fix a chain hoist I would need it to repair an old agricultural machine, unfortunately my limited economic resources prevent me from using a crane, a forklift or a telehandler, therefore I would have to find some H-beams, tubes or other profiles to make a structure like a sturdy scaffolding that works like an overhead crane. by eye you would need a structure with a minimum capacity of 600kg - maximum two tons of capacity not greater as optimal dimensions 2.5 meters or three meters high and three meters wide the lateral base about 1.60 meters. can you kindly help me maybe I make the base with a U-beam upside down on the side and put the wheels on top. I also have to put the appropriate reinforcement gussets thanks again sorry for the translator's misunderstanding forgive me thanks.

Take a look at this one, it is only a 1 ton, but it should give you a good idea of how to build one.

Try this place