Sorry in advance for this post being so long, I just want to clearly explain my situation.

I have a 50 yr old ranch in northeast Ohio.  Several years ago I had water in the basement on the east side of the house.  I had a company come out with a camera on the end of a drain tool and found that the deckbuilder had put a post through the footer drain and partially filled the pipe with concrete.  The deck is on the east side of the house.  Over the years sediment built up and clogged the pipe.  This caused the pipe across the front (south) side of the house to fill up. 

The land is higher on the south side of the house and lower on the north side of the house, with a walkout basement on the north side.  Also, the garage is attached on the south side of the house.   

Several years ago I dug out the footer drain on the east side of the house, and waterproofed that side.  When the ground was open I had a company come out and water-jet the footer drain across the south side of the house; about 25 ft was clogged due to the east side backup.  On the east side of the house the slope of the land is such that the footer drain was about 7-8ft deep at the south end and 2-3ft deep at the north end.

Last year in the spring, and once so far this spring I had water come into the basement through the wall on the south side. My neighbor had a similar problem; and we have similar houses on the same slope of land.  He hired a company to fix teh problem.  When his drain was dug out he found that the old clay pipes had simply become completely clogged with 50 years of clay seeping in, and only had maybe 1-2 feet of gravel around the footer drain.

I believe that although the water problem is minor so far, I should probably replace the old clay pipe on the south side of my house and waterproof the block, add the proper amount of gravel, etc, etc.  When I did the east side of the house I dug everything by hand.  The east side was about 25ft long; the south side is about 40ft, and full depth the whole length.  I don’t really want to dig that much by hand.  Since the garage is on the south side I would have to dig inside the garage to reach the footer drain. 

So my question is: What’s the best way to dig this out?  I’m not sure if any type of machine would fit inside the garage.  Not sure if a backhoe would get close enough to the house, there’s also a slab outside the garage that only leaves a 3ft flowerbed between the slab and the south side of the house. 

I can’t really afford to pay to have the whole job done, so I’m trying to figure out the cheapest option; maybe just hire someone to dig it out and do the rest myself??  Any advice is appreciated.