Most of those are from foreign shipping and prices. I'd be looking for the USA distributors. I'll have to do some checking.
From what research I have done, the Sebart line of planes are too expensive.
The Viper jet is ok in body style, but they tend to be too large for the engine I have on hand (I don't want to be on the low end of power)
Dolphin---I know there were issues with the tail moment on some company versions. Not sure about the one listed above.
I'd be looking for something I don't have to worry about Mods....I have that now.