I need help with suspension. on my b7 Passat More info in comment. Thank you

So. I already have there r18 235/40 which scrape on bumps when loaded. Im loading about 200kilos daily+passangers.
i want to fit r19wheels so they dont scrape. Stance possible but not needed… which suspension?
its passat b7 2.0tdi 103kw 4motion.
max parametres for this stock suspension are 235/45 r17.