Obsoleting all my old lava farms, this new design uses 4 layers of 13x13 planes of cauldrons with a hole punched in the middle for a
entity to drop through.
Tested for 40 hours, producing 82496 Lava Buckets or about 2000/hr.
The tank is your choice as long as it can be interacted via
or 
(e.g. Functional Storage's Fluid Drawers).
Lectern is linked to the bucket repository.
Display Case is linked to the lava bucket repository.
Front/Bottom Starbuncle takes from catalog and deposits into lava bucket repository.
Back/Top Starbuncle takes from lava bucket repository and deposits into adjacent Arcane Pedestal to feed the Volcanic Sourcelink.
Turrets
Enchanted Spell Turret Above Tank: 
or 

depending on your choice of tank
Enchanted Spell Turret Behind Glass: 









Timer Spell Turret Next to Bucket Repository (10s): 


Materials
673 Lava Buckets (1 for Item Frame)
673 Solid Blocks (support pointed dripstone - one used beside observer to power tank turret)
672 Cauldrons
672 Pointed Dripstone
222 Glass (can be replaced with any solid block)
30 Buckets (roughly - one is used for item frame)
7 Repositories
3 Powered Rails
2 Enchanted Spell Turrets
2 Starbuncle Charms
2 Item Frames
1 Repository Catalog
1 Storage Lectern
1 Timer Spell Turret
1 Source Jar
1 Volcanic Sourcelink
1 Arcane Pedestal
1 Observer