I understand how you feel about the inheritance thing. I inherited my grandfather's car and still have it today, some 25 years later. It's currently off the road but I cannot bear to get rid, so it just stays in storage for when I'm ready to get it roadworthy again.
There are so many questions you'll have to ask yourself. Apologies if some of them are personal. Don't feel like you have to answer them in a public forum, but they are the questions I'd be asking myself if I were in your position:
An A110 in good condition is worth serious money these days. Do you need the money? Although I usually think that if I'm not desperate for the money, the actual item has much more sentimental value to me than the money itself. And I get pretty sentimental about cars.
If you don't know much about cars, are you willing to learn? You can get others to work on it for you, but there will always be things that need fettling. Much better that you learn and appreciate and understand the foibles so you can properly assess what needs doing and how the car is performing.
Can you afford to recommission it? Maybe there's some inheritance money left that your father would have loved for you to spend on restoring/recommissioning the car? It's difficult to assess the costs of restoration, but a starting point would be: has it been dry stored? Did the engine run before it was stored? At a bare minimum you'll need a full service, probably need to replace all the brakes and many steering components, the tyres, etc., etc..
Would you want to get it restored in the UK by a specialist that knows what they are doing and entrust it to them, then have it shipped over as an unknown quantity, or would you prefer to have it restored by someone in Canada that might not know what they are doing, but at least you can view it during the work? In my experience there are always issues during and after the restoration that need attending to in order to produce the desired end result, although must admit to being a bit picky!
Easy to drive? I've never driven one, but if you can drive a manual car, it shouldn't be too difficult. It won't be as comfortable or quiet as a modern car, but it will be a lot, lot more fun!
Can you fit in it? It's a small car. If you're tall, or ...ahem... well built
you may struggle.
Andrew