Partial basement/ crawlspace

I have a partial basement with an adjoining crawlspace. The crawlspace is approximately 24' by 24', ranges from 2 ½ to 3 feet deep ans has three concrete block supports under the main beam. I would like to dig out the crawlspace and I have seen alot of opinions/ advice on this subject on this message board. My questions are:

1. What would be the best way to support the main Joist (with metal beams?) and what would be the best way to go about it (excavate along side the supports first then set up temp post and beams- take out concrete supports, dig and put new ones?)

2. How much of a job like this can be done by a novice (assuming the crawlspace footings aren't deep enough and will have to be extended). Keep in mind all work will have to be done within the inside of the crawlspace ( no bobcats/ front loaders) and wheelbarrowed out.

Any help, advice or opinions would be greatly appreciated!

 

I would start on one side and start digging. You will have alot of dirt. Enough to keep you busy for a year. When you get to around 2 feet from your existing beam, put in a tempory one and keep going. Then when your past the main beam area, reinstall your main beam and supports. Good Luck PS My brother and I did almost that same thing and about that same area when we were 11 years old. We carried it all out with a pail. Good hard work does not hurt anyone.