What engine are you talking about? Hope nothing electric.
A honda b18 engines would be a noption. Most likely it would cost even more than the 4efte. I would look into every possibility of using your current engine and get a td04l or something like that on your engine. The ct9 is going to be very hard to service soon, while the td04l is a very common turbo and will have a supply of parts for a long time.
The management part is going to be a challenge but the 4efte you will be swapping in is very old and will require so much work it may not be worth it. For the same money you can forge your current engine and get lower compression pistons to run boost.
Focus on future support of parts instead of something that is now possible. The 4efte is a swap which is currently possible but I doubt maintenance for it wil be easy 5 years from now. Forging your current engine with custom exhaust line is going to be the best bang for your buck in my opinion. The cost for the front mount intercooler will be the same for the ct9 and tdo4l.