Dale, great clean shed, I seem to remember when my shed was as neat as yours. Nowdays it is rather full. My mobile gantry is over 3.8m. high and we are able to lift a fair weight.
Here is the Lynx hull suspended awaiting the chassis to be rolled, on a set of go-jacks, under it for the final time. A 3 point lift using the Leyland No7 set at the rear was all we needed to get the required height. We used the gantry to lift the original engine out of the speed boat into which it had been placed in 1958.
Regards Rick.