That should be fine John.
A lot of people go to great lengths to obtain superfine clearances on model engine bores, but in reality, near enough is usually good enough for what we do.
The exceptions are as I have said, engines that have heat in them, steam, IC, sterling, flame gulpers etc.
But there is nothing stopping you going for fine finishes and fits on air driven models, it doesn't do any harm.
BTW, you can measure your bore by turning up a tight fitting plug, and measuring the OD of the plug, you should be able to gauge it to within 0.0005", which in your situation would be more than close enough.
I have had working steam engines thru my hands with bores and pistons worn to more than 0.010" gap, and they still run satisfactorily, though not efficiently.
John