The Archives are usually quite fast in responding to Bouppteckning requests, but right now there's some major construction work going on at the Archives in Göteborg, so I think you may have to wait for another week or two.
A Bouppteckning was originally handed in to the nearest court (a district court, "häradsrätt" in the country, "rådhusrätt" in the towns and cities). A Bouppteckning was always in duplicate, so one was returned to the heirs (after paying death-duties) and the other was kept by the court. The one kept by the court was from the early 20th century eventually turned over to the State Srchives. Some years ago the system was changed so that you hand over the Bouppteckning to the tax authorities (inland revenue services); the tax authorities return one copy and keeps the other (they haven't yet started to send them to the State Archives).
Until 30 Jun 1991 all records regading when and where people were born, married and died were handled by the parishes of the Church of Sweden (regardless of your religious affiliation - with the notable exception of Jews). From 01 Jul 1991 this task was taken over by the tax authorities. Since the Church of Sweden was separated from the state in 2000, the parishes were obliged to hand over all records of this type to the State Archives. The hand-over is nearly complete; the only exception being the three southernmost provinces (Halland, Skåne, Blekinge).
Thus all records from as far back as they are available - which in some cases are the 16th century, but most often from the late 17th or early 18th century - until 30 Jun 1991 will be with the State Archives. Of course, there are sad cases where the records have been lost to fires etc.
When you look for ancestors or relatives until the early 20th century you need the exact date of birth and, above all, the exact parish. This is of course particularly relevant when you have ancestors and relatives with very common names. However, if you want to trace modern relatives - given the very common surname - you do need exact date and place (=parish) of death since the only way to get hold of descendants in modern times are through the Bouppteckning.
Records at the State Archive can be accessed (as far as 1940, there's a privacy statute of 70 years) through any one of three providers (all subscription sites): www.genline.com www.arkivdigital.se www.svar.ra.se I believe Genline records can also be accessed through a special subscription to Ancestry, but I'm not sure how this works.
After the lease on a grave runs out the plot is "returned" to the cemetery who can lease it to someone else - unless of course the descendants of the people buried in the grave wish to re-new the lease, which they are perfectly free to do. If the descendants do not want to renew the lease the headstone is removed and is in most cases carefully put up against the cemetery wall - though there are some cemetery administrations that just scrap the headstone!