Spit14 definately not worth the points.
Ta152H is pure masochism.
F4U-4, is probably the only plane worth perking, but certainly not as high as 50 points.
..
10~20 points for Spit14(about 15 would be cool!), 10 points for Ta152H-1, and a nice 20 for the F4U-4 would be enough.