I'd try Hindu Kush, AK-47, Top 44, lowryder hybrids are auto flowering... So you cant choose how tall it gets before you flower it and the yields suck. You can Flower any plant early and make it a short plant. Any good Indica strain will work for you. Just pick something with good genetics, grow the seeds pick the biggest most hearty female and keep her under 18 hrs of light in her own little space so she stays in the veg. mode...
Then take cutting off her and start cloning. Then once the clones have had time to get established and reach 12" Flower them under a HPS or Warm white CFLs... then you'll never have to buy another seed and you will have short little ladys budding all the time.