Hey Greg, I wouldn't put him to a big mare but for the smaller mare you might also want to think about Artistic Fella.
You'll get a whole lot of horse for not a whole lot of $. He was an outstanding racehorse, won 12 races in sub 1:50 times, 7 in 1:48.4 or faster, won 10 straight Stakes races @ The Meadowlands as a 3yo & smashed them all in doing it, took a 1:48.0 lifetime mark, won a tick over $2.6million, he's a big, imposing individual & he leaves good looking, great sized foals. You can get into him for $3,400 Pay On Live Foal or $3,100 pay on 42 day test.
I'd be very surprised if he doesn't make an immediate impression with his 2yos here in Oz. While he shuttles back to Seelster's in CAN, he stood his 1st season here and so his first crop to the track will be actually Oz bred, they're rising 2yos now.