Hey guys and girls.

I currently have an '09 Colorado extended cab. I want to make it into something better than what it is.

I am thinking of putting in a 355 small block, flow master exhaust and I want to convert my auto transmission into a manual.

On the inside, I want to get rid of the front bench, put in two bucket seats and take out the two rear seats for a full bench.

Now, my question is. Roughly, how much would this cost me? Would it be possible to complete these modifications in less than a month? And is there any way to permanently disable the TAC and stabilizer? (they are useless and annoying). Also, is it worthwhile to switch it to manual, and if so, what transmission would you suggest to go with the 355?

Thanks guys!