With effort, time and $$$ you can make anything work.

Or, you could order New lines from some other company. Not sure if it's worth the effort to sue in small claims over the ones you received.

How Complete is the brake line kit (what line or lines are included)?

If it's complete, Would "guess" that the hookup to the master cylinder should be near identical, or does this line only extend from the Proportioning / brake-safety valve to the block connection at the rear axle housing?

If it extends from the rear axle housing to the brake cylinder versus brake calipers, you may have to modify the lines to get them to fit or function.

Modification may be as simple as carefully re-bending lines, or you may need to bend and form new lines if the ones you have are not long enough. Or, perhaps caliper lines are rubber flex type, or have different size/type end fittings, which would be another issue entirely.

Do you have any photos of what you received or will be receiving?