NeuroDyne Telemetrix $($NDT$)$ has an equity beta of $1\mathrm{.}38,$ a cost of debt of $7\mathrm{.}25\%,$ a debt ratio of $25\%,$ and tax rate of $35\%.$ The company's EBIT for $2023$ was $$381,331,000$ and a similar figure is expected for $2024.$ How much debt would NDT need to issue in order to completely eliminate its tax liability? What are the limitations to this strategy? If NDT has $$550$ milliion bonds outstanding, what is the current value of its Interest Tax Shield?