Back after two games out with a hamstring problem, Austin headed home in injury-time to give Rangers their first win in four Sky Bet Championship matches.
It was his 12th goal of the season and manager Harry Redknapp is determined to sign at least one forward - preferably from the Barclays Premier League - to play alongside him.
And Bond said: "We need help in that department and Charlie needs help, but he's coming up trumps for us. He is under pressure to score.
"I think in an ideal world, Harry wouldn't want to take a big chance and would like to bring in someone he knows can do a job.
"If you get someone in from abroad it can be more of a risk, but that's not to say that if the circumstances were right he wouldn't take someone from abroad, because I'm sure he would.
"He's looking at the options available to him and hopefully, before the transfer window closes, something can be done."
Austin headed in Danny Simpson's cross after substitute Matt Phillips had poked in an equaliser from close range 10 minutes into the second half.
Doncaster had gone ahead through Theo Robinson's cool finish two minutes before the interval.
Bond added: "Yes it was very pleasing, but we made hard work of it. The result was so important on the back of a difficult time for us.
"In fairness, the lads showed a lot of spirit to come from behind. I thought Doncaster were excellent and gave us a lot of problems in the first half, forcing us to change the way we play.
"We weren't really at the races in the first half, but competed more in the second and got the winner - a great, great winner - from Charlie."
- Sports & Recreation
- Barclays Premier League
- Harry Redknapp