Hi Tommy,
a local suspension specialist fabricated the spacers, nothing special about them. Since then, I just added a few clicks in the hydraulics. For now, funds are a bit low for an upgrade, I'm learning to accept the poor suspension. To be fair to the bike though, for average riding the bike feels good. It's when you start to push, countersteer and brake hard (aka fast road or track riding) that brings out the "problems".
Regarding springs, so far only Wilbers makes springs for the front, for rear suspension you have a lot of options for a new shock (Wilbers, Ohlins, Nitron, FG Gubellini).