Hello, I am new to studio lighting and keen to learn. Someone has given me an old set of Bowens Espirit gm500 but they need a trigger to get them to be compatible with my Canon 6dmkii. Someone local is selling PocketWizard Flex TT5 & mini TT1. Do you think this is compatible? I can't find anything definitive online. Or is it worth just buying a new set of basic lights to begin with? If so, what would you recommend on a budget? Thanks!