Whether to go all the way on 1500 square feet of concrete?

[Robert Campbell]

Hello All:  I am fairly new to flipping (this will be my second one), and I have a question on which way to go with concrete.  It is a 3 bedroom brick house and I am paying about 30k, it could sell from at least 70k move in ready, and its in pretty good shape - needs flooring (5k), paint (2k), new kitchen (5k), new bathrooms (4k), new windows (8k) - rough numbers to

give an idea of the scope of the project.

Now there's the concrete... I would estimate there is about 1200 - 1500 square feet of concrete outside that is in bad shape.  I have been looking into how much would cost to completely replace (I hear $3, $5, and $8 per square foot from a few sources including this forum.), trying to add a layer to the top, someone recommended using asphalt but I dont like that idea.

If this was a 200k plus house, I would definitely replace the concrete - I am looking for suggestions on what is the best way to handle the concrete, which is the one major issue with this house, given the budget.

Thanks in advance for any input!

~Rob