Replace Deck Pad on an ULI iSUP?

[EsqDavidK]

I need to replace the deck pad on a 10 foot ULI Steamroller.    I have some pretty basic questions:
Where do I get new deck pad material? 
What's the best way to prep, cut, glue, etc.? 
Hope a Zoner can point me in the right direction.   
BTW, I've reached out to ULI a few times over the last couple weeks via emails and have yet to hear back.  I hope all is okay with the company and they are just very busy, all at a trade show, on vacation, or similar. 
Thanks in advance.