anybody know about 2-post hoists?

Asymetrical is so its easier to access drivers door.
2500 canadian pesos isnt unreasonable for a decent hoist.
As mentioned, your standard garage slab wont support a 2 post hoist. The anchors drilled in /concentrated weight load on two points will likely break slab.
Supports to ceiling/roof joists will stabilize hoist and improve safety margin.
My preference is a 4 post,much safer although it eats a lot of floor space. I bougt my new backyard buddy for 2500. It was in a shipment that was in a crash, insurance wrote off the load. Young fella bought it at auction and his dad wouldnt let him put it in his shop.
9000 lb version. Have used it daily for nearly 4 years.