"The first van caught me by surprise and I just wanted to pay off the project … it was booked out for six months after it was first listed and I didn't really see the van because it was coming back, then going out the next day.
"If it wasn't for that, it wouldn't have enticed me to work so hard on the second van and getting that on the road."
Since starting his Wander Campervans business, Moffat has sourced 50 per cent of the materials used to fit out the interiors from the online marketplace Gumtree.
Each vehicle takes the Cronulla resident about six weeks to complete and involves tradesmen, such as electricians and plumbers.
"I found most of the effort goes into the final 10 per cent of the job and into the detailing.
"I wanted to be environmentally conscious, but I wanted to save money, being a university student, so using the platform cut the costs in half.
"I got everything from a camping fridge to wood fixtures from an old house and it all helped."
In a sentimental touch, Moffat has given all his vans a name starting with 'H', inspired by his parents' honeymoon travels around Australia about 30 years ago in a van named 'Henry'.
"I got a few ideas from their van … so when I built the first one, I named it 'Henry' as well," he quipped.
"But they're also Toyota HiAces, so calling them 'Henry the HiAce' or 'Harlow the HiAce' has just stuck."
Gumtree research has found almost two in three Australians were going on a holiday this year, with more than half doing so over the Easter long weekend.
About 53 per cent of travellers claimed they were going on a road trip or camping holiday during that time.
Moffat said he had seen interest peak over the Easter holiday as well, with vans completely booked out over the month of April.