Yes you can make it fit though its quite a lot of work, does not fit all that well and there not all that great. The best fit is to get a long drive nose made up for it but this is a expensive option.
This is NOT a modified Mini but rather a generic fit model of the same unit but you can see how the long drive nose makes it fit quite well. This next one is a mini one fitted.
and
For low cost boost have you thought about a turbo? For most DIY jobs a low boost turbo is a simpler option. Or if money is no prob have a look at GMC supercharger kit for the Saxo. The centrifugal units are far more suitable for these cars.