I bought a cheap Lekato set off Ebay for around £30 for home practice. Worked really well so tried gigging with them. Have done probably 20 gigs with them now and never missed a beat.
I need a full sized amp and cabinet otherwise I'd miss out on all the pi55ed punters saying 'that looks heavy' as I'm trying to negotiate my way out of the venue while they all stand right in the way.
Could be even more difficult. The combination of beer gut and the curvaceous nature of the double bass body could result in the arms being far too short to reach the fretboard.