To get 1:1 you want around 120-130+ watts per pound maximum ( burst ) power.
So if your plane is going to weight 15.2oz ( as projected by the manufacturer ) then take a figure OVER this and multiply by 130watts...
So let's say the plane will weight 20oz AUW just for safety....
1.25lbs x 130w = 162 w
So a 180 watt motor will do the trick.
Assume that you'll use an 11.1v LiPo pack...
180w / 11.1v = 16.3A
A 20A-25A ESC will work fine
Thust HP says that a 8x6 prop spinning @ 11000 RPM produces about .234 HP
1HP = 745w
.234 * 745w = 174w ( right in the ballpark! )
So we can use an 8x6 prop and spin it at 11000 RPM.
11,000 RPM / 11.1v = 990KV or approximately 1000KV
I'd use an 1100KV motor to add a bit more power.
Finally let's find the battery we'll need... we'll want to drive it only to a maximum of about 15c if it is rated for 20C.
16A will be our maximum draw
16A * 20/15 = 21A @ 20c
So a 1000mAh to 1200mAh 11.1v 3S pack would be the smallest you can use... I'd go with something around 1300mAh+ for safety. 1800mAh would give you the flight times you want but adds weight.
So there you have it.
1300mAh+ 3S 11.1v LiPo
8x6e prop
20-25A ESC with BEC
1100KV Motor rated up to 180-200watts burst for 15-30seconds. ( look for a 150w motor or so ).