This is the horse?
""Marty" - Blac Magic - 3 yr black Al-Khamsa, Egyptian-sired colt. Blac Knight x Kumars Matara. Easy to deal with, though sometimes he is too smart - he learned to let himself out of the round pen or stall when he was a yearling. Athletic, and his dam's get have been successful at racing and endurance. About 14.3 hands. Class A or sport-horse halter quality."
"Too smart", in the Arabian world, translates into, "good luck keeping this horse contained", which you can already see is a problem with this guy since he learned to let himself out of the pen as a yearling. It can also mean that the horse will make training difficult because he will not blindly accept what you tell him. His age: it would be
at least 2 years before you could even think about doing any training for saddle work. Arabian finish growing slower than most other horses and because of it should be left to finish their growth completely before beginning saddle training. He will mature to be on the small side for you at 14.3, which would be another issue. While his dam's get
may be successful at racing and endurance (two different disciplines, by the way), his sire does not have the build for either. He should be a gelding. If his dam's get have been so successful in racing and endurance, why does she recommend him for halter showing? That is a completely different discipline that requires a different build. If you intend on doing breed shows, good luck. This guy won't get you far.
He is a stud colt. 3 years old and, going by what she's said in reference to the other three she is trying to place, is most likely
seriously lacking in basic ground handling. That, in combination with you having little experience with such a horse, is a bad idea. Keeping intact horses, whether colts or full grown stallions, offers a huge liability risk for the owner. YOU, and you alone, are responsible for keeping the horse contained-which could prove difficult. If he gets loose, it's on you and no judge in this country would side with you if you ended up in court because of it. I can't tell you how many stories I've read on a variety of horse forums where the poster was having trouble-or in trouble-because their "sweet precious, never hurt anyone" stud colt turned into a raving-and potentially dangerous-lunatic when the hormones set in and there were mares around. A couple more things to think about: gelding in the summer is usually a bad idea, so if you got this horse, you'd have to watch him every second of everyday and enclose him in nothing short of Fort Knox, until Fall. Then, it is still possible for them to remain fertile for around 30 days after the gelding. You're looking at possibly 4 months worth of jail guard detail.
I am not trying to be a "nay sayer" for no reason. If these horses were of any real value, stud colts or not, I'd be looking into them. As I told you on the phone, if these horses were valuable-as she would have you believe-she'd be able to sell them
easily and not have to give them away free. (Which, they are not free, you'd have to pay to haul them from AL to here, and pay for any shots and coggins before they were moved.) Just hit any of the horse classified sites. Even Arabian weanling-3-4 months old-are selling for money and not being given away free. The horse I was looking at was being sold because of the owner's desperate need to, and she went for $1900. As a two year old. Within two weeks of him posting his ads.
In short-yes I know this has been anything but

-I wouldn't do it. For what you'll put into this horse after hauling, over the next two years of waiting for him to finish growing, and training
on the hope he turns out to be what you want, you could do better buying something that is what you are looking for. Don't let the word "free" blind you to the reality of what this horse will end up costing you.
I wonder if we could get OFCOL over here to get a run down of this horse's conformation and pedigree. She is a genius when it comes to this stuff and I've learned quite a bit from her over the years.