What makes you think I haven't done it? I listed exactly what you need, in addition to the v160 and 2jz-gte: harness, ignitor, resistor pack, and ecu. You say you've already got the intercooler covered (aftermarket?). Oh, and you'll also need a different or custom driveshaft unless you also plan to swap your n/a diff with a TT diff. Of course, the exhaust setup is different from the n/a so you'll need an aftermarket (catless) downpipe or an oem downpipe (with cat) to hook up to the
oem egcv housing.
Where are you getting the 2jz-gte? If it's from a Japanese engine dealer, it'll likely be from an Aristo, which means the oil pan will need to be changed (you can use the one from your 2jz-ge). It's a LOT of work getting the oil pan completely clean before applying the new gasket material because the upper oil pan is aluminum and there are narrow grooves you have to clean out - of course a steel brush or wire wheel will take aluminum off too, which is why the job is so cumbersome.
However, note that this swap won't produce a full TT Supra. For example, the abs braking system on the n/a is significantly inferior to the tt's.
Lastly, please note that you can't stop folks from posting - especially if the info they have to share is relevant. However, you do have the power to ignore anyone's posts, and wait for someone else to post who has better info for you.
Peace, and best of luck.