some of the chinese stuff isn't that bad when you consider the price you pay for a 'branded' oil filter relocation kit. you are looking at about $800 bux to do a proper setup using earls fittings +line or an equivalent HKS (or similar) kit.
only place you don't want to skimp is on the fittings. some of the ones on trademe have crimped fittings which would be less susceptible to leaking but then you are stuck with ultra long lines.
i dare you to go into a fittings shop and get them to give you a quote for all the fittings you will need for it. make sure you are sitting down at the time.