Get to rank 2 at the gunsmith for a great sniper and finish your quests for a decent 1000yard stare. The vendor one is meh.

I'm right around your on my PS account and my next purchase will be the crest of alpha lupi. It is a solid choice for trials, can be customized to meet you ammo needs, and it has a great look to it. Just my opinion.

Hung jury from the vendor is amazing I use it in pvp and pve sadly I haven't infused high enough and another good one are the weapons from FWC almost all of them have a nice roll i wouldn't spend my marks on an exotic since I can always get it to drop

The stock 1000 yard is a good roll and will work fine until you drop one with a better roll. We're all guilty of wanting the Exotic's but how often would you use the one you're thinking of? Stock Hung Jury (dead orbit) is arguably the best scout in the game. (Depending on what else you might like). It's all I use on the raid as a primary. I prefer Exotic's to drop, I've infused loads upto the 300 mark, then suddenly the 310 version drops.