Hello sgazit,
I hope all is great with you. Thank you for using the NXP communities.
Below is a link to the available documentation and useful material for further simulations:
MRFE6VS25L - 1.8-2000 MHz, 25 W, 50 V Wideband RF Power LDMOS Transistor
In addition to the documents mentioned above, we do not have any other documents.
Have you considered the reference design from the link below?
RF Circuit Collection

Note that the MRFE6VS25LR5 device is not recommended for new designs.
I hope this information helps.
Regards,
David