Audi V8 restoration

Hello, dear people! I will soon be 18 and will receive the car of my opas, which still fulfills its purpose and purpose “to come from A to B”. During this time I would like to do myself about the restoration Audi V8. what do you think (maybe someone has experiences), what a motor overhaul would cost and what a performance increase for possible little money would be 3.6 liter–what can you do for the good yet oversized money bag. the project should about about a Run from 3 to 4 years and the V8 will then be used as a “Sunday Car”. would be nice if I would get as many tow as possible as soon as possible… mfg Sebastian