"It is a start and it is our intention to run them," says Mills.
"We are hearing there could be two more steeplechasers coming down for the Grand National which would really help and we would love to have eight go around in the Grand National Hurdle next Wednesday.
"But that means them all getting through this Saturday well and we all know what racing can be like.
"The only downside to having lead-up races is a horse can perform poorly or have a hard run and the trainers may change their mind about the main race.
"So we will have our hearts in our mouths watching the two jumps races on Saturday."
The hurdle and steeplechase on Saturday and the jumping aspect of the carnival will only go ahead as regular Riccarton supporter Kevin Myers is starting eight of the combined 12 runners in the two races this Saturday.
So no Myers, no Grand Nationals.
Mills says his team will wait until after the carnival before re-assessing whether to again ask New Zealand Thoroughbred Racing to hold lead-up jumps races at Riccarton, which would even be held alongside a synthetic meeting.
That will be the case if the Grand National Hurdle gets off the ground next Wednesday, with the flat races on that card to be held on the synthetic.
"We actually suggested to NZTR we have lead-up jumps races but that was turned down last year so we will look into that again but whether that it enough to keep jumpers in training down here I don't know," says Mills.
Saturday's feature race is the $100,000 Winter Cup, again with Myers have a huge presence, but the glamour race of the weekend is over 1200km away at Ruakaka.
That will see Railway winner Entriviere with a 63kg topweight over stablemate Imperatriz carrying 60kg in the open sprint also featuring On The Bubbles and Dragon Leap in a rare early-season handicap of this quality.