the 2 chaser front cuts are sold but call them they may have other options.
the sump is wrong so this has to be modified. Do not bother go for the chaser.
The link aboove had 3 chaser motors last time I was there.
See if they have loom and ECU.
The other important factor is the cross member.
I have not done a conversion 1JZ in MX83 but planning and this is what I have found out.