Marshall Sholtz: from facebook oct 4, 2018 i haven't, (though have one mostly finished) but as the mystery machine raced in milwaukee, the bom is probably * ~$300

• $25 alternator core
• $29 motor controller
• $4 buck converter
• $123.76 battery /2 = $61.88
• 1 2×6 = $5.47
• 1 2×4 = $3.57
• $11 sheet plywood
• $50 for 4 tires
• 4x $5 rims = $20
• $11 belt
• $ 5 alu motor pulley
• $ 5 hardboard rear sprocket
• 2x $3 weldable hinges = $6 (steering hinges)
• scrap metal???? $20? - steering ,shaft coupling
• ~$10 farm&fleet hardware by the lb
• rear axle $15?
• 3x p5/8 pillow blocks = $7 = $21
• so approximate total bom for mm milwaukee = $303

If you want to buy it for $500, go ahead. I think Id actually be pretty ok with that.