(Brilliant idea.)

[Taller stem will not work because it lacks the proper length. WRONG]


OP, you realize the Nitto Technomic stems come in various height ranges and stem lengths so you make that reach and drop match your desired spec. But, you'll want to get it right the first time. You should be able to match your Raleigh it that's what you want. However, where your center of gravity ends up being afterwards will be another matter.