If you order a copy of the will it will cost £10 from HMCTS and you will receive it as a pdf by email in a few working days.
Wills can contain a lot of genealogical information.
If you order a death cert from the GRO at Southport, (don't order certs through Ancestry, they are a middle man and charge highly for the service) they claim to despatch within 5 working days but I'm still waiting for certs ordered on 21st July. There must be a backlog somewhere.
Death certs will contain the name and address of the informant who should be the nearest next of kin. If he was still married then his widow should be the informant unless incapicitated in some way. If the case went to the coroner for post mortem and inquest, then the coroner would be the informant.
If money is no object then go for both, but if I had to chose, it would be the grant and will I would go for, which won't have his cause of death but his date of death (which you also see in the calendar) his last known address, the name and address of the executor and who he wanted to benfit from his estate.
I would then go for the death cert when further funds allowed.
Certs from England & Wales do not contain as much genealogical information as those issued overseas such as Australia.
If you search in future, do no order documents described as Letters of Administration which are granted when there is no will. It will still cost you £10 and you'll get the name and address of the executor but nothing else of any genealogical use.
