We recently had to replace our Hill's rotary hoist (finally died , heck it's over 50 years old and the spindle shaft finally corroded out).
First thought was get a new hoist from Bunnings ..and install it myself .. you have buy the Hoist in a box , collect it or have it delivered (delivered is $50 minumum !!!) , buy a bag of ready mix cement (NOTE to all - avoid rapidset as it will corrode the galvanised coating very quickly) , and then you need to install it (bore / dig a deep hole in the yard - how many people have a post hole digging (scissoring type double) shovel and a prybar hanging about in the shed) - so if you don't you either need to buy these (not cheap) or hire a mechanical post hole borer and auger (add at least $100 for a over night hire) or pay someone to do the job (Bunnings can't help there , wont even recommend a local contractor)(works out about the same cost , so there is nothing at all to save there by the DIYS route (....bummer ....

).
Turned out being cheaper to call Hills , and buy the Hoist direct from their local distributer who supply , deliver and arrange a complete installation of their biggest collapseable rotary hoist for only about $20 more Bunnings charge for just for the Hoist..(can't buy a 20kg bag of mix for that !!) .. and nothing more to pay .... and the warantee remains in force too !!!
Pays to shop around by phone or email.... and buying from Bunnings isn't always to best / cheaper way to go.
I suppose this is no surprize to the more die hard DIYSers here who do handyman jobs at home and for family and mates all the time.