Engine Choice

[Broekens]

Hi,

I think I'm going to reconsider my engine choice. I'd like to have the following specs for my engine:
-150-200 hp
-Being light for the performance it kicks out.
-Besides being very quick, it has to be a bit relaxing on long highway cruises, the car is going to be my daily driver!
-Relatively low fuel consumption for the power it kicks out.
-And the most important of all: I don't want to spend more than 1000 euro's on basic donor parts.
So I considered the following options:
-BMW M50
-BMW M52
-Cosworth BOA
-A bike engine?
-Rover V8
I'd like to know what would be the best engine for powering my car. Maybe you have some other engines which would be suitable for my build. I'm pleased to hear your comments..

Greetings