Printing a4 documents and posting to the uk,

We have some requirements to print on an adhoc basis, they will be a4 in size and to be posted by second class postage to addresses across the uk, there will be only a few per week, as most are sent in a pdf format, suitable for retired person with access to good quality printer, the price would be for time only, expenses will be paid to cover paper and postage, maximum 2 hours per week, numbers will vary, but there will be minimum of 1 hour per week, preferrably on a friday morning. Maximum bid 4 hours in advance.