You will not be able to run the factory external slave cylinder on your NV4500, as it will hit your front driveshaft without any lift.
So, you'll need to buy the advance adapters bellhousing that puts the clutch on the driver's side, and also the bracket for the external slave cylinder from the landcruiser.
To mate the NP205 up, you will need to purchase an adapter to go between the 4500 and 205 unless you find a newer 32 spline 6 bolt round NP205. However, the newer t-case would require you to find an aftermarket shifter solution. I'd personally recommend running an NP208 or NP241 (pass side drop) behind the NV4500 however, just for concerns of how much weight the 5th gear housing can handle.
If you do switch over to a chain driven t-case, there is also the problem of the transmission's shifter boot being in the way of the t-case shifter, so you may need to work out a cable shifter that mounts away from the transmission shifter boot.
Of course, you know about the hydraulic clutch stuff that needs to be dealt with as well. The 73-80 trucks add an extra challenge due to the way their firewall is designed. I had to add a bunch of reinforcement to keep the firewall from moving when actuating the clutch.
