Melos PS-1 Restoration

I have a Melos Ps-1 Gold pre-amp, and it has a couple small issues I would like to have fixed. I tried to e-mail Melos Audio Restoration, only to find out that they went out of business a long time ago. The problems are small (one of the input loading knobs doesn't "click" to different impedances, it spins freely, and the light led's are supposed to turn green when it is warmed up and ready, instead they are always red) but I would like to get them fixed so I can sell it in the future. Does anyone know of a place that could fix these problems?