Searching for parts of a Sunrunner 195 CV

[Hotti]

I am new in this community and want to intrduce myself. I'm living in Geramy and own a Sunrunner 195CV since 2003. After eight years I start making the fit for water now and I need some parts. To start with I'd like to replace the seats and install an new cabrio roof.

Can anyone help with tips and hints to where I can get these parts???

Thanks for helping me!