Honestly there are no other options.
Maybe you can buy a universal racing adjustable ball joint and find a fabrication shop to modify a set of oem upper control arms. I myself am disappointed that there is not alot of aftermarket support in the suspension department for wk2 srt. With all the bilstien strut issues leaking one would think BC would make coilovers available. I know id give up active damping for a set of coilovers.