IMO few yrs ago, B16 swaps were still in the 3-4k range, so turbo d would b the go, if u know what fits, an what u need u could do it for 3k easy, nowadays, u can pickup a complete b16 swap, with all running gear for 1.5 - 2k, so u gotta weigh it up really...

b16 swap is the easier way to go and cheaper route, if u dont plan on keeping the car for long, otherwise........

turbo vtak = fun times