G BAR type Kits available ?,,

[usa-69z]

I have been now reading a ton of threads on the installs and problems with all ther different setups.. g-bar -ridetech, g-link-alston , dse-quadralink ,, and im finding reports of chassis cracks , and mainly ride height adjustment.. this is where im at a loss.. it seems most guys cant get low enuf without comprimising the spring length? has any systems rectified these issues yet? I believe dse have the 'lowest' setup but more cost/work for an install.. my car sits low and i dont want to lose the stance it now has..and want an 'easy' install.. street driven only ,
did anyone figure this out?