tbh its not as much as it looks, its just using a spot weld drillbit to drill it out, then mig welding the new one in, took about 2 hours with the adjustments and setting shit up
there wasnt much engine work, just unpluging wires to move and taking the manifold off to weld the lambdas thread back in... Tbh from the start i said if i could fix it i would, its going for mot monday, but the guys already seen it and says its a good job, so that'll do me! Thanks though guys!