Seagull Sea plane from hobbyking. Laser cut balsa builtup plane. Has been modified for grass. Easy takeoff and landing. Pontoons can be installed with a little effort and used for water. Includes Motor, Prop, 60A ESC, all servos. Just add receiver and 4s battery.
Costs around $550 plus labour to build.

Will sell for $225 Negotiable.

$250 for bind and fly with a DSM Orange receiver.

Details here
Features:
• Will fly from water or can be hand-launched
• Pod mounted motor
• Easy to build, perfect for beginners
• Full laser cut balsa kit
• Ample amounts of strip wood supplied
• Comprehensive hardware pack including pushrods
• Includes printed 1:1 full-size building plans and step-by-step manual

Specs:
Type: H-King Seagull Full Laser Cut Balsa Waterplane Kit
Wingspan: 1570mm
Length: 1220mm
Approx Flying Weight: 2.1kg
RC Channels: 4

https://hobbyking.com/en_us/h-king-seagull-full-laser-cut-balsa-waterplane-kit-1570mm.html
$230
Covering 2 rolls $50

Shipping $88

https://hobbyking.com/en_us/corona-538mg-digital-metal-gear-servo-7-0kg-0-13sec-53g.html
16x4 = 64
https://hobbyking.com/en_us/propdrive-v2-4238-750kv-brushless-outrunner-motor.html
$70
https://hobbiesdirect.com.au/Surpass-60A-ESC-SUR-300005...
$67