Incorporating swinSID design to new product

Hi all,

I have made an own C64 emulator with custom HW. I am planning to make another version and this version will be made very tiny. In order to fulfill the small footprint I plan on adding the swinSID design directly on the PCB instead of having a DIL socket. I am planning on selling these in a small batch.

First I am wondering if I am allowed to do this by the people holding the rights to this device.
Second, if I am not freely allowed to do this, could I pay royalties to someone in order to get the rights to do this (or some other solution) ?

Regads,
StaringL

Thanks, I will do so !