wheels and tyre combinations

[mattg]

I have purchased a set of 17 inch Resolfen Citroen wheels from eBay for £150.  They were originally fitted to a C4. I have a quote of £284 for a full refurbishment (they are not badly marked) and I will add a set of tyres, I am thinking Nexen N'Priz 4S 225/50/17  for about £280 fitted, balanced etc.  I have  to purchase a set of nuts, is there any particular rule to follow in order to get the correct ones please?

It is more than my original budget (£400) which was obviously unrealistic!

Anyone comments to make about the viability of what I'm thinking? Many thanks as always.

[Solent]

The model car or van, and year you have would be handy.

[mattg]

apologies, an oversight on my part! I am taking delivery of a Berlingo XTR in the next couple weeks. It will be cumulus grey in colour and is the multi-space version.