The Sons boss has masterminded a remarkable turnaround in form since replacing Alan Adamson at the Bet Butler Stadium and given his side a real chance of survival in the Irn-Bru First Division.
They host Raith Rovers tonight aiming to move out of the relegation zone as fellow-strugglers Cowdenbeath face title challengers Partick Thistle.
Murray has added Stuart Urquhart, Nicky Phinn and Owen Ronald to his ranks in recent weeks and is pleased with his squad strength ahead of the relegation run-in.
He said: "I can't see any more coming in between now and the end of the season unless something happens and someone becomes available that we really want. At the moment, there are no plans.
"Looking at the squad, we are happy with what we have got and we are looking pretty strong. When Andy Graham comes back from injury, we will be even stronger.
"We brought Stuart, Owen and Nicky in ahead of the Raith game and I am pleased to have them in the squad.
"Stuart did well on his debut considering he only trained with us for half an hour on the Thursday night. Nicky has been training with us for a while and it is Owen's first taste of football at this level.
"We have guys back from suspension now and we have good depth and quality in the squad."
Dumbarton head into the Raith clash tonight on the back of two successive defeats after they went down to Grant Murray's side and Falkirk on successive weekends.
Victory would take them eight points clear of bottom of the table Airdrie United and Murray is keen to make the most of their games in hand.
He said: "It is a totally different game. The first game was away at Raith and now we are at home so it is a great chance for us. I thought we did well through there and hopefully we will get a better result at home.
"It is a game in hand from a match that was postponed a while back and it is a good chance for us to hopefully get some points on the board.