I try to look for other small, but growing biotechs for my comparisons. A company like INCY has a growing product portfolio with increasing revenue, currently running just shy of $3B in revenue. They hung around $18B before a year end drop. Their pipeline has some promise and revenue should grow from recent launches.
If you figure $250k give or take and US SOC that hives you about 8-10,000 cases per anum and figure closer to 5-6,000 other countrymen. They would price lower figure $175K on average, then I would say $3B in revenue is achievable faster than you think and licensing and pipeline and indication expansion gets you much further than INCY. I am guessing a rapid acceleration followed by a short squeeze spike falling back down to a reasonable near term number. Then an explosion as revenue rolls iin and several indications start trials.