Heart transplant or retirement?

[LaraWilde]

Hello kiddies,

I currently have a 72 K20 Chev Cheyenne with a 99 - 6.5L turbot diesel and a 5 speed box.

I used to have a 327 in it with a 4 speed before I converted.

Now I am looking for something new again - I am tossing up between buying a new rig for an everyday driver and using the old girl for recreation OR putting a new engine etc in the big gal and giving her a make over (new interior and electrics etc.

Any ideas as to what I should do and do you have suggestions for the best motor to put in?

I do a lot of kilometers on the open highway so I need something with power to tow and overtake, but good fuel economy, and comfy cruising speed.

I am looking at about $40k AUS to buy the new rig I like.

I am guessing $10k gives me a new interior, new electrics would be about the $10k mark and that leaves about $20k for motor and drive train.
Can I do it for that??? - remember the Aussie dollar buys about 60c US.