i really need both and i have like 650$ to spend. and i was thinking since my cam weighs in i can get HD 1000 and a ok fisheye. or should i just go all out on the lens
Yes, look at the lenses. There's literally upwards of 6 brands that all sell the same exact lens with a different logo on it. Some call it a 6.5 and some call it an 8mm. It's the same.
depends on whether you want a fisheye or a normal wide angle. the 11-16 will give a lot better IQ but won't have the distortion that some people look for.