Those Sportsman II heads are $836 for Bare castings. The fully assembled heads are $1316. That is a bit over the OP's budget of $1000.
Staying within the $1000 budget, the Promaxx heads are not a bad deal. Plus they have a smaller more street friendly 185cc intake port that will still support more power down the road.
https://www.summitracing.com/parts/pmx-2169/overview/
There are a few variations of the small block heads.