Hey Nick,
First off, I just wanted to say thank you for your service, I was in Iraq in 05, is that where your deployed?
Anyways, I'm fairly new at this, but I've talked to people that wholesale from a distance, for the contracts usually they use a fax machine. I'm guessing you don't have access to that, but another thought I just had and I don't know if this can still be set up now that your already there, but you could sign a limited power of attorney and have someone you trust sign the documents for you. Make sure it's limited though so that person doen't stab you in the back and take everything you own, I had friends that had it happen when I was there.
Another option, I've never used one so I don't know exactly how it works, but I believe by using a land trust and you being the beneficiary, you could have your lawyer be the trustee and then he/she can, sign the documents for you. Not sure on this one, do some research before you use either idea as I've never used them.
Lastly for "seeing" the property, I've talked to some people who never see in person the properties they are going to buy, they pay someone, in your case could be just a friend, to walk through the properties and take lots of digital pictures and basically inspect it for you, then they can email the picks and you can do what you can to verify there information.
If you don't want to pay someone you can have the seller take the pics and you can ask them what they would fix in the property if they werent going to sell it. This obviously is riskier since the seller can and will lie, but if you assume this and put an inspection period in the contract, your buyers are going to inspect the property anyways so they will let you know if your estimates are way off. Nobody has perfect estimates anyways, if your even close you should be ok.
Just my thoughts, curious to see what other people say.
Again take these ideas with a grain of salt since I'm fairly new and haven't done any of these things myself.
good luck
Lance