I need to know were I can find lowering links for my gsxr750 1990 ?

Hi
I a new rider I have a 1990 gsxr750 not a katana is da slinshot dat was I was told by one of my friends da bike is realy heavy n high for me dat why I'm tryn to get da lowering link so dat way I can atleast learnd how to ride it. I want to keep it but I'm bn told to trade it for a gsxr600 something smaller so it b better for me to ride. Please if u know wer I can get lowering links for my bike let me know or if u wound lik to trade. Thank