Bull bar on disco series 1

Hi all, just bought a second hand BOCAR brand alloy bullbar for my discovery

1 & it didnt come with any fitting kit.There needs to be a bracket that goes from the bull bar to the chassis.At the moment there is about a 6 inch gap between bull bar & chassis (crush cans).The bull bar has 2 steel plates with threaded holes that I presume are meant for the attatching brackets.Any help to find a suitable bracket would be helpful as contacting bocar was of no help as they will only supply new complete bull bars.Thanks.Jon.