Bite my shiny metal ass....
Anyway- Im stumped on the esc and motor issue- it really shouldnt need a shove to get moving, and if the esc is heating up that rapidly, something is very wrong somewhere. I would suggest testing it outside so that you arent crawling around in a small area + goping back and forth (that'll really warm the esc up quickly like with an old mechancial speedo). Beyond that, I'd say kill the esavage with fire and buy a nitro version to convert.....