Gearbox and Diff options

[MIGGZFSU]

Hey guys

Iv searched and come up with a few things on here but need more help.

I have the 85 coupe auto.

Now we only have 1 coupe in my country and 3 other hatches.

Now i would like to convert mine to manual and would like a lsd as well.

The car will be daily driven but would like to attend track events as well.
Now saying all of this a 86 drive train will seriously be out of the question to get here.

What are my other options considering we did have the toyota cressida and ke70 models as well.
we also do get the Nissan S13 here

Need something thats not going to be a full on frankenstein undertaking conversion to try do here.

Thanks in advance guys