Had 4 "IG"s a few years ago, didn't really have a good place to keep them. Was kind of cruel to put a dog like that inside for most of the day. Downstairs neighbors complained about the sound of dog running in a circle all day!
Will anwer any questions. Bones in legs are kind of fragile, you can see the way they back off if you rush them although one of mine slammed real hard into a moving car, and was not seriously hurt.
They love to run on the beach sand, it's soft on their feet so they can get up to speed, (pedal a race bike as fast as you can and watch them blow by you--35mph? the big greyhounds twice as big are only about another 5 mph faster)
This was before many knew about them, the tourists asked questions
the neighborhood kids asked me to let them walk the dog, called it a pussy magnet, and a fair amount of riddicule calling it a "fag dog".
The ones I had were large and solid color, not great breed confirmations, so were about $400 each from varous random sources, probably puppy farms, there are a couple decent places in Florida, see if I can locate. Just have to hunt for a breeder with one about the right age.