U have a ton of choices under 1250. Victory, ego 11, ego 10, dm10, dm11, NT, G6R, Clone, Geo+, Geo2, Etek3.
Best guns would either be the PE ego11 or BL Victory... in my opinion.
If I had that money i'd buy an etek3 AM for 600 get a cure 3+ bolt and Zick2 for 80 bucks. So 680 bucks total. Then spend the rest on other shit like Paint, Field entry, Hopper, tank, mask. Y'know all the other shit haha