In earlier work the authors reported on methods they investigated to implement quasigroup block encryption in hardware, with an emphasis on low cost. The aim was to design and deliver a hardware design solution that was inexpensive but did not sacrifice encryption security; the desired target for the design is low-bandwidth, low-cost areas such as Supervisory Control And Data Acquisition (SCADA) systems. Here the authors report on further refinements of this design with the aim of making a single-chip solution.