problem installing custem seats Options

[speedyrider]

i just bougt RAGE sport seats.
nog i have problems fitting them.
they came with universal rails.
and to make them fit i firt made a platform.
and mounted the seats on there.

now the problem is that the seats are way to high.
i m allmost sitting with my head against the roof.
so does anyone have any hints how i could meke them fit.

i tought buying a platform from sparco or something like that but i couldn't find one for a 6 gc

now how much difrence is there in the mounts of a 5 gen a 6 gen and a 7 gen ?

so that i might buy a 5 th or a 6 th and customise it


(and i did do a search, but couldnt really find what i needed )