Kev, you're just complicating things and wasting money You're not willing to spend £70 more on the Nissan OEM W brace which by far better design than any replica, but you're willing to spend over £200 for the Nissan OEM banana arms just to make sure that garage can fit the parts?
Find another garage that knows what they're doing or do it yourself, a lot of money and hassle saved, you'll also learn more about your "Toyota"