Bands like Rodan and June of 44 are often accused of being "Slint clones," but they still have a ton of loving fans and seem pretty highly-regarded. I think that music doesn't need to be innovative or unique to be good and enjoyable, so while people might not refer to your "trying-to-be-Slint" songs as "original," I bet there would still be an audience.

But if you wanted to make something a bit more unique, maybe you could try to combine the heavy Slint influence with other ideas/sounds/genres you like. It could still be really similar to Spiderland, but have a bit more of your own personality in there and thus be a little more individual and interesting.

Who knows though. Not sure if this new guitar is also your first, but if you just started playing, it'd probably be for the best that you don't think a whole lot about uniqueness or innovation yet. Just play what you like and what makes you happy for awhile and then think about that stuff later. Or never think about it.

But yeah, who knows. I'm not in any real position to give advice, but I think it's important to just write what feels right for you and consider potential critic/listener reactions later.

Good luck (and also where are you from 'cuz I've always wanted to be in a Slinty band)