If the machine was quite in spin before the spider broke then most likely seal and bearings are OK.
You don't have to replace the complete spin basket with the spider attached,(ref#11), in the Duet SPORTS. You can purchase just the spider/shaft assembly for the Duet SPORTS, ref#27 in the parts break down picture.
Much more of a reasonable price and also don't get hit with an extra $50+ shipping charge for over-sized package shipment.
Spider only - $62.95
Complete basket with spider/shaft - $173.35
Source: Whirlpool WFW8300SW04