Vintage Yamaha Bass guitar amp (no dirt channel!) is an underrated sleeper amp for stoner rock, and more! I found mine at a local used music store for cheap. Great cleans, and a versatile pedal platform with a parametric eq section. I used just about the cheapest fuzz pedal out there: the $20 Kmise Fuzz and the Kmise Analog Delay and got pretty rad tones for next to nothing. The diy cab is a homemade oversize 1x12 I put together in my garage. Wood was laying around at my work, so it gave me an idea, and I loaded it up with a cheap-o Celestion G12-30-MG.