Hi, How about this?
1/700 scale German U-Boat VIIC,IXC
producted by Hasegawa
Water line series Item No,126
400 YEN I think it is about 3.5 US dollar.(I am sorry how much costs
in your coutry)
This is very very easy to make it.
If you want paint it, I suggest using gray color spray
before make it
This is kits photos
(Ruler is Centimeter 1inch=2.54cm)