grantura 1800s ball joints (maybe upgrade brakes) help need

[MORTIMER84]

im starting mountin my wishbones and i fond a problem, i whant to buy new ball joints and i didn 't found nothing similar

the lower wishbones are for a triumph spitfire (1 have one of tvr and other of spitfire and i buy two similar)

then i look for the ball joints and 1 found this problem, i have the 3 of the photo



i dont have the tipical brakes, i have a ball joint in the lower, i see similar conversion here but i don't find information
http://www.spydercars.co.uk/marcos-triumph-gt6-gin...

someone nows something

thanks

[MORTIMER84]

and if someone knows the references of the others, thanks