  Recently, it has been shown that altering the natural collisional power flow
of the proton-Boron 11 (pB11) fusion reaction can significantly reduce the
Lawson product of ion density and confinement time required to achieve
ignition. However, these products are still onerous - on the order of $7 \times
10^{15}$ cm$^{-3}$s under the most optimistic scenarios. Fortunately, a
breakeven fusion power plant does not require an igniting plasma, but rather a
reactor that produces more electrical power than it consumes. Here, we extend
the existing 0D power balance analysis to check the conditions on power plant
breakeven. We find that even for the base thermonuclear reaction, modern
high-efficiency thermal engines should reduce the Lawson product to $1.2 \times
10^{15}$ cm$^{-3}$s. We then explore the impact of several potential
improvements, including fast proton heating, alpha power capture, direct
conversion, and efficient heating. We find that such improvements could reduce
the required Lawson product by a further order of magnitude, bringing
aneutronic fusion to within target ITER design parameters.
