hello, i am thinking of buying a Clarke MIG230TEC Welder. i will be using ti for welding up cars, exhausts, the odd roll cage and mayb a trailer or woo, tho i woudl normally use mma for a trailer. is this welder any good ? as i cant aford anything more expensiv, i have a van free card for machine mart, so was thinking of getting one there. would this be ok ? http://www.machinemart.co.uk/shop/product/details/cl-migwld-230v230tec