serg, is this the same laeger you had a couple years ago that you showed me in person? I dont remember the tie rods being in front like that. I would say thats pretty damn rare if so. the spindles in the pic look to be the TRX250r from 1986/1987. probably before leager developed T-pin spindles.
me personally, I wouldnt go f'ing around trying all sorts of spindle conversion - with those tie rods in the front like that who knows what would happen to the steering geometry. it shouldnt be too difficult to source some 86/87 TRX spindles, hubs, etc. let me know if you need help