Referring dependencies that don't yet exist in Maven - maven

Question

I need to install a whole bunch of 3rd party jar files in my local repository, using maven-install plugin. That part is done with the following pom:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.sap</groupId>
<artifactId>sdk</artifactId>
<version>${sap.version}</version>
<build>
<plugins>
<plugin>
<groupId>com.soebes.maven.plugins</groupId>
<artifactId>iterator-maven-plugin</artifactId>
<version>0.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>iterator</goal>
</goals>
<configuration>
<items>
<item>cecore</item>
<item>cesession</item>
<item>celib</item>
</items>
<pluginExecutors>
<pluginExecutor>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-install-plugin</artifactId>
<version>2.4</version>
</plugin>
<goal>install-file</goal>
<configuration>
<file>${bo.lib.dir}/#item#.jar</file>
<groupId>${sap.group}</groupId>
<artifactId>#item#</artifactId>
<version>${sap.version}</version>
<packaging>jar</packaging>
</configuration>
</pluginExecutor>
</pluginExecutors>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<properties>
<bo.lib.dir>C:\Program Files\SAP BusinessObjects\SAP BusinessObjects Enterprise XI 4.0\java\lib</bo.lib.dir>
<sap.group>com.sap</sap.group>
<sap.artifact>sdk</sap.artifact>
<sap.version>4.1</sap.version>
</properties>
<packaging>pom</packaging>
In a nutshell, I'm looping through these three items (cecore,celib, and cesession) to perform the actual installation.
I would like to then add these three items as dependencies, but since these won't exist before the package phase, Maven complains about that.
Ideally, I would like to instruct Maven to resolve the dependencies after the packaging, or to instruct Maven to trust that the dependencies will in fact become available.
Any ideas/suggestions?
Thanks!
Eric