Where can I find examples of cranes or A frames in rhino

Hi! I have reproduced a part of a fishing boat by 3d modelling and I would want to include some details like an A frame on the stern, or even a engine in the engine room. Since these details aren`t relevant,
is it possible to get the modelling of this objects in somewhere? or anyone knows the way to represent this objects not by modelling them step by step?
Thank so much!


thank you so much!!

A-frames on fishing boats are usually custom fabricated for the specific fishing boat.

Yes, I know that but I mean something general just for giving a cool finish to my design.
Thank you!