If I remember correctly, I bought this kit from Alex Rogers for cheap, and it's one of those oddly mislabelled ones that Minicraft is infamous for. Here's the box:
It is of course a -300, not a -400! I prefer to build my airliners in Australian liveries if I can (though not slavishly so), so I whipped out a set of Flightpath decals for the livery and another modeller sent me some AHS window decals to round things out. I also boxed out the landing gear cavity in the fuselage with styrene sheet.
Thanks for looking in!
Kev