Diesel for president!!!!
Why not putting aswell an automatic gearbox in?
Have a look here:
http://www.matrasport.dk/forum/index.php/topic,169.0.htmlDoing a engine conversion is a very big job. It is not only a case of putting an other engine in, that's just the start. You have to deal with engine mounts on the chassis, modifying drive shafts, making a new exhaust system, connecting the gear lever to the gear box, hydraulic clutch, connecting the cooling water pipes (and also for the interior heating), petrol tank (can it stay or move it or re-shape) fueling, space for the turbo, where to put the intercooler, ECU and electrics (big big job), upgrading brakes and suspension, ......
Just realize it is a big job. There are lots of examples of unfinished engine transplants. They all got the new engine in, and struggles with all the other bits, and gave up.
But you obviously need a bagheera first... And get that restored. Do not dream at this point about an other engine. You are not there yet.