I think your numbers are getting to where you will be happy. You may want to look into a T-5 transmission along with a open rear end. This will save you some $$$.
Take your time looking into the parts and what brand to purchase. You will find that more than one supplier will be needed to end up with the best parts and price. Also pay attention to shipping costs and policies, freight adds up fast.
The devil is in the details, take your time.
Good Luck
Don