Perhaps not.
Trailer cargo capacity is measured as dispersed weight. This means that if your trailer is rated to carry 10,000 lbs. of cargo, that does not been that it can hold 10,000 lbs. in a small area.
Because the weight of the forklift is confined to a small area, the trailer may not be able to hold your forklift.
This issue also applies to the weight capacity of the ramp.
Make sure that your dealer knows what you intend to carry and its weight, and that these requirements are listed on your order.