social bookmarking and profile building

we just need social bookmarking and profile building work, however only to very high quality sites. any site with homepage PR less than 4 will not be accepted. bookmarking:- the total number of keywords to be bookmarked is 50. each keyword needs to be bookmarked 5 times, so total bookmarking required is 250 the work needs to be done in the following fashion:- 1) submit only 25 bookmarks a day, and do it over 10 days. do not submit the bookmarks in one day, or do it over 2-3 days. this is very important and it has to be done properly. profile building: the same 50 keywords to be made in 5 profiles each, for total of 250 profiles. the work needs to be done in the following fashion:- 1) submit only 25 profiles a day, and do it over 10 days. do not submit the profiles in one day, or do it over 2-3 days. this is very important and it has to be done properly. bid only if you can do this work in proper manner as required over 10 days