Remember Bishoff's Engine Masters winning 401 G3 from a few years back .
they got a bit over .800 valve lift using 1.8 jessel rockers and SBC .842 lifters with the tie bar removed and modified dogbones . Not sure how reliable the dogbones would have been long term .
if you want to go modified Link bar lifter route it's actually simple,
attached is a photo of Jesel's Alum lifter yoke...it's not hard to duplicate...… best lifters to modify are Howard's Retro lifter part #91764
COMP Cams Retro-Fit Hydraulic Roller Lifters 8920-16 can be made to work also.
I have a 441CI (4.09X4.20) build running around the south east part of the country right now , pair of Philly boys in a 08 magnum hitting Street racing parts of the south with a set of Howards that are made solid. with a 6061 alum custom yokes....the stock plastic yokes once you cut them to modify them they are junk.
