Promotion to Blue Sqaure Bet Premier almost sealed, now what?

I have a 12point lead on 2nd with 6games to go which is almost a garantee for promotion, gave contracts to my best guys and the ones which wanted so much more I did not renew. Now what is the next step to ensure a healty bid for next year's promotion or it is impossibly difficult maybe? I do not wish to get bankrupt in the next 2 - 3 yrs but would like to add up some guys to reenforce my team, should I loan in only or?

Thanks
Etienne