I built one using a 25-inch Ed Rayl barrel. I was lucky and got it in just three months. It is .61 caliber and weighs 7.25 pounds.
I have shot it with 100 grains of 2f, and it is not unpleasant to shoot. Germans made maple guns as well as fruitwood guns. Admittedly Juglans Regia was the most common.
I haven't quite figured the top load for it, but the bottom load is 85 grains of 2f.
I also made a jaeger using the Rice Edward Marshal 37inch barrel in.58 caliber stocked in maple. That is a great shooting rifle and very pleasant to shoot. However, it weighs 9.25 pounds.
If you are patient, you can build one for your budget and get what you want. Not as many options for hardware in steel but enough to make a good rifle.
The one with the Ed Rayl Barrel.
The one with the Rice barrel.