Thanks so much- I'll send him a note regarding the LM 1875 kit. I really appreciate your help

Hello- I'm new to this forum, and I'm hoping for some advice . I'm a capable musician, and a competent builder, but I don't know anything about amplifier components. I would like to build an amplifier (solid state) around two 12" Altec Lansing 601 C loudspeakers. These are 20 watt speakers (30 watts peak, with 8 ohm impedance. I've built a nice cabinet for them, but I need to add the electronics. Any advice on where to go for a kit to complete the project?
Thanks
Handyman