And, I think its just a tad less $$ not much though
yes you can buy the alter-k piece by piece if you want.
as far as the hemi denny one goes at the end of the day if you use the same high quality parts as the alter-k uses its really no cheaper. and you have to spend the time to source all the parts. not a huge deal but for the same price i may as well one stop shop with the alter-k.