Looking for XEM based ICO contribution code for upcoming project

We are in the pre-launch phase of an Australian based ICO. While I am not a developer I have chosen to launch on NEM, as I find its nameplate / mosaic system very suited to the development of our platform.

I was wondering if there is any automated contribution codes the community is aware of that can;

a) Be modified for % variations based on contribution phase
b) Multicurrency acceptance with automated % +/- based on market value

We will be looking to develop several NEM based applications in the future for our project we will be sharing with the community, but don’t want to waste time and effort if this already exists for open use.

If this question has been beaten to death I apologize, I did find one contribution code but it did not have any of the a & b aspects to it…

Thanks

I don’t know whether this can already be used as is but there is a showcase available on github: