home made k frame

sure, if you can fabricate.

the biggest problem is that the t-bars and lower control arms pick up off of the K as do the strut rods, so your engineering and measurements have to spot on. the steering portion isn't as critical in that you can correct a bunch of that with rack placement and some bumpsteer blocks.

but you're likely going to go coil over, so that solves some problems and creates a whole 'nother set of 'em.