We had to do an engine change on our Brit at a Naval Reserve Air Base just outside New Orleans. The only crane available was an old WW11 truck with a crane on the back. It's primary use was to pick up a/c that had crash landed! It had two cabs. One on the back to operate the crane and one to drive the truck.
Having got the engine suspended on the crane the driver had to get in the front cab and gently reverse towards the wing. He then had to get in the rear cab to raise or lower the engine as we required and so on.
This took quite a few frustrating attempts before we managed to hook up the engine. All this was done, at night, under arc lamps, which attracted every mosquito in the vicinity! Before we left we ensured the driver's boss knew of his splendid effort. He'd never done anything like it before!