Product Configurator

Looks like product configurator is gone in ver 4.x What has anyone done to get a round this. I have products, that have optional kits to go with them. I tested out options, but that does not work for me. The optional kits are products, that a customer can buy by themselves also. So with using the old product configurator the additional product would be a line item o the invoice. Also it looks like options also automatically get what ever sale discount form the main product.

Thanks for any thoughts on this,

David DeWitt