When going outback you need at least 2 spares and the only place to mount the 2nd spare was on the roof. The Razerback conopy has roof rails built in that are rated at 80kg. Along with the Rhino bars and roof rails that I have I thought I was sweet. Decided to stiffen up procedings by adding some fore/aft steel unistrut profile. This is a steel section that is shaped similar to the rhino heavy duty bars, It is used in industry as a multipurpose hanging system. You can get it from Electrical wholesalers and it is a fraction of the cost of rhino bars. There are a massive amount of different fittings that are available to suit different applications, just search the internet under Unistrut or Ezystrut.
Anyway, used three lenghts of strut to stiffen up the roffracks and used some eyebolts to tie down the spare.
The spare sat on these strut section
Lucky I did as the Razerback roof rails were not up to the corrugations and basically shook themselves to pieces. Had to reinforce the roof rails with one of the steel struts, as can be seen on the above photo to the left, and locked it all in place with some spare cam straps we were carrying.
The highlift jack went on the roof rack as well. Was going to buy some commercially available brackets that take the jack and a shovel for a measily $65, but had heard that they rattle really bad. Decided I could do better so ordered, through my electrical wholesaler, some unistrut brackets. Bolted the highlift to these and cable tied the shovel to the jack. No rattle, real tight and secure from theft as you needed tools to get them off. Total cost $3.75.
Heres a shot of the lot in action
Will be making a full roofrack to attach to the canopy, for future trips, as I am not real impressed with the Canopy roof rails as they stand now