What I have already:
2x SuperMicro CSE-M35T-1B 3x 5.25" to 5x 3.5" Hot-swap SATA HDD Trays
1x Xcase Pro Duplicator case 3 bay SATA (need a second) - $66.00
Additional cabling necessary to convert:
2x 1-Port SFF-8087 to SFF-8088 Adapter, centronics bracket - $29.50
2x 0.5m SFF-8087 to 4x SATA fanout cable - $27.00
2x 1m SFF-8088 to SFF-8088 External SAS Cable - $47.00
2-Port SFF-8087 to SFF-8088 Adapter (probably not required if I use an SFF-8088 HBA below) - $53.00
SATA - external mini SAS (SFF-8088) bridge AD4SMSAS (Won't need fanout cable with this)
Possible HBA options:
HP Smart Array P800 16-port PCIe SAS SATA Raid 512MB BBWC - $79.00
53X3 DELL 12DNW PERC H200E 6gbps SAS PCI-e Dual Port HBA - $169.99
HighPoint Rocket 2722 8-Port PCIe 2.0 x8 SAS/SATA controller - $199.00
Areca ARC-1320-8x 8-port / 2x SFF-8088 External 6Gb/s SAS Non-RAID Host Bus Adapter - $345.00