[Closed] On-One and a HAMAX plus rack

Anyone managed to get a hamax rack onto the wishbone on a inbred?

The arms for the rack ar bent and shaped in such a way for a conventional seat stay, on a wishbone they do not fit as the curves in the arm make the two arms hit each other before the ends with the holes in are anywhere near.

I need this rack to fit my childseat on so need a proper solution, two i can think of is to get some straight bars made up, or to use a spacer between the wishbone and the rack, but amd concerend that this will put too much strain on what would be long thin bolts....

any practical solutions gratefully accepted....