Too much work unless they are paying you $300+. You have to get the yearly income of your comps. That is difficult. I've tried up there in Davenport with those houses as well. 55% vacancy was the reply back than, and the management was, if I recall, 42% of the net if furnished. Plus, the last time I did one in the World, the weekly rental rate was $3,000 for the Brits and Americans and $5,000 for the Asians. Asked why, and the management company said the Asians are willing to pay more and we advertise higher rates in their countries. So then I needed the percent of Brits vs Asians in the last yearly rent cycle. I am doing it off the top of my head, but I think it was like 75% Amer/Brits, and 25% Asians. That made my yearly potential gross income $182,000.
The trouble is, the 1007 is to estimate potential gross income, but the PGI of $15,167 per month is quite misleading without filling out the operating income statement. Based on the numbers, the EGI is $6,825 and the NOI is some number below $3,960 per month (that doesn't count typical expenses).
Any 1007 report I'd do in that area would comment on the maximum effective income for vacation rentals in the area in the comments section of the 1007 report. You don't want to give the impression that a house with less than $48,000 of yearly income, not taking into account typical expenses, has a market rent of $182,000 per year.