McCoist's men have won all of their games in the SPFL League One comfortably and are already five points clear at the top of the table.
The Glasgow giants have netted 23 times and conceded just two goals in their five competitive outings in the division so far.
The full-time club is widely expected to romp to the title in what is largely a part-time league - smashing records in the process.
But McCoist has confessed he has one eye on winning a place alongside Old Firm rivals Celtic in the SPFL Premiership in the near future.
He said: "We have to keep looking further, a season or 18 months ahead. Because if we can start preparing now then I feel we have a better chance if and when we get there.
"That's what we are continuing to try and do. We have to keep trying to better the squad.
"I can understand people saying, 'surely you have enough to do this or that?' But that's not the object.
"The object is preparing for down the line, rather than just short-term. We need to look further."
McCoist added: "That's why we are offering the boys long-term contracts.
"The boys probably wouldn't sign for a year anyway. They are all looking for security and that's a minimum of two years.
"You can say that they should sign for a year if they are coming to Rangers but football doesn't work like that. We are trying to plan longer-term."
The Light Blues gaffer has brought in nine new players during the summer and is hoping to add former Hearts star Marius Zaliukas.
He has offered the Lithuanian centre-half a deal after being impressed by the 29-year-old's trial spell.
McCoist, who has not given up trying to land Bosnian defender Boris Pandza, is hopeful Zaliukas will commit himself to the Third Division champions.
He said: "I would love him. He was good enough to come over and train for a week and I was really impressed with his condition for someone who hasn't done anything.
"He is a big lad who obviously looks after himself. I'd be hopeful that he wants to come and play here with the season up and running.
"And I think he would certainly strengthen our squad. There is no doubt about that.
'I think he would be another leader and that's important as well. We now have three or four boys we fancy to lead and do the right things - boys like Lee McCulloch, Jon Daly and Lee Wallace."
Meanwhile, left-back Wallace and midfielder Lewis Macleod face late fitness tests ahead of the trip to Forfar tomorrow.