Omega 3000 in matt black paint what would be the cheapest

Moin @ all Would like to have my red Omega 3000 completely in Matt Black… Who has information how expensive that would be in a paint shop or if I could do it with roll/can myself. If I let this in he paint shop it comes to me cheaper if I myself develop lamps and what else can I do so that I get this quite cheap. Does someone have experience with self-painting in relation to can or roll and the KOsten? Sorry have no idea of such things and Pre isen … Thank you in advance