nova..... forend?

I have a mossberg 835 and am thinking about selling it and buying a nova tactical "sp". I used to live in a rural area and hunted but now I live in a small city and really just want an hd gun but with the option of getting a barrel more suited for birds perhaps. I was going to get a shorter barrel for the 835 but felt i was limited to a cutting off a barrel which i couldnt find for under 100 or a custom job; which if i had the funds for they wouldn't be going towards that, but towards a new, better hd gun. Anyway I think I like the nova a lot. It's only drawbacks to me are that it doesnt have a folding stock as a possability, and finally we get to my big question; can i get a different forend for it? I was thinking of something shorter perhaps so as to be able to use a 6 round shell holder on the side, or do they only make 4 round holders compatable with the nova? Any input reguarding anything I've said would be appreciated.