The 22-year-old capped a speedy return to action by playing first on the wing and then at full-back in the final warm-up win over Argentina.
Halfpenny's World Cup hopes appeared to be in tatters after he needed surgery to place a screw in his foot.
However the Cardiff Blues back has fought his way back to full fitness and is now in contention to start against the defending champions - with Halfpenny unfazed by what number he has on his back.
"It was great to get a chance at full-back for 20-odd minutes against Argentina," he said.
"But as long as I get a jersey on and play for Wales, I don't care what position it is."
Despite Halfpenny's blistering pace, George North and Shane Williams look certain to have nailed down the two starting wing berths.
That means Halfpenny, who is also a fearsome goalkicker, could come into contention at full-back - particularly as Lee Byrne looked badly out of form against Argentina.
For Halfpenny, though, he is just glad to be out in New Zealand after a gruelling rehabilitation programme that included cryotherapy chamber treatment in Poland and regular visits to oxygen chambers in Swansea.
"It was tough with the injuries," he added. "But fair play to all the medical staff, everyone has been superb.
"They said they would do everything to get me here, and they have definitely done that.
"The Wales coaches rang me the next day after the operation and said they were going to do everything possible to try to get me fit.
"They've been as good as their word."
Wales today continued their preparations for a first World Cup meeting with the Springboks, and they cannot afford to go into their shells during a game that will play a key part in determining Pool D's final outcome.
"From my perspective, we are going to need to score two or three tries if we're going to win the game," said Wales attack coach Rob Howley.
"When we create opportunities we have to make them count because this South African side works tirelessly off the ball, particularly in defence."
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