Reddit reviews Slide-Co 16774 Closet Door Roller, 1-3/8-Inch Steel Ball Bearing Wheel,(Pack of 2)
We found 1 Reddit comments about Slide-Co 16774 Closet Door Roller, 1-3/8-Inch Steel Ball Bearing Wheel,(Pack of 2). Here are the top ones, ranked by their Reddit score.
Steel constructionCenter grooved ball bearing wheelSide mounted bracket for external mountingEasy to install
https://www.bunnings.com.au/cowdroy-1620mm-clear-anodised-robemaker-wardrobe-door-track-set_p3980003
It's pretty common in some regions of the world for interior sliding doors to ride on wheels on a floor track, with just a guide at the top. Have any antipodean friends who could ship stuff to you?
In North America I've only seen similar hardware à la carte rather than in "kits", so you would need to know how to mortice the rollers into the door bottom etc.:
https://www.hangingdoorhardware.com/pocketdoors/sliding_door_bottom_roller/bottom_roller.htm
https://www.wwhardware.com/media/installation/KV-sliding-door-instructions.pdf
With a door "blank" acquired locally, you could surface-mount two rollers ($30) to the face of the door at the bottom, use the mating $40 915A track screwed down to the floor, and have as little as one wall mounted guide to catch the top of the door above the edge of the opening.