I haven't installed an acrylic base in a long time----I looked at the weight of that unit---it appears to be a good heavy one----If you do use an acrylic base be sure to set it into a bed of mortar it give it support.
That model is very short--is low access needed? The short curb may lead to water escaping onto the floor outside of the shower-----
That model is very short--is low access needed? The short curb may lead to water escaping onto the floor outside of the shower-----