Things you will need:
Fluid Transposer @ Thermal Expansion
Lava Fabricator @ MineFactory Reloaded
Stirling Generator @ EnderIO
Octo Capacitor @ EnderIO
Tank @ Any mod that has tanks or fluid storage
Piping + fluid Piping @ Any mod that has fluid + item transfer with whitelist.
So you have the stirling generator and a octocapacitor producing 1.2mill RF/T with a bucket of lava on top you have the lava fabricator making 1 bucket for about 450k RF/T , lava gets transferred automatically from the fabricator into the tank or storage , duct transfers the lava from the tank into the transposer . On the side of the transposer you have a duct with whitelist only lava buckets into the stirling generator. Bottom of the stirling generator you have another duct with a whitelist of empty buckets going into the transposer.
Stirling Generator produces [email protected] 80RF/T Internal storage of 500k RF
Any ideas on how to make it more compact let me know , suggestions and opinions are welcome.