It is my understanding that Winburndale was more than just one property. To me, it refers to a locality, various farms, perhaps a small village with a glebe, or a common … not just to one farm. One branch of my NSW families are reflected in my avatar, and the Hawkesbury district family also farmed across the mountains in the Bathurst District with many mentions of Winburn Dale in the family papers from as early as 1819 through to the mid 1860s …
So, I am fairly sure there’s plenty of sightings of Winburndale farm that should help you work towards pinpointing Morrisset’s farm … to be found in Trove, perhaps in the Gov Gazette section rather than the Newspapers … but definitely for land grants with or without purchase (so grants given in the 1820s without the Crown receiving any financial reward are ‘without purchase’,) even though it seems almost impossible to access the online maps from lps for the 1820s and 1830s.
To me, that great find by Jamjar giving the description of the buildings etc is pointing to it being one of Samuel TERRY’s properties, so I have concentrated on that aspect and note that back in 1826 Samuel TERRY’s steel mill was nicked from his property (station) at Winburndale… Steel mill = milling wheat into flour !

see the Supreme Court mentioned here Sydney Gaz 13 Feb 1828
https://trove.nla.gov.au/newspaper/article/2189907 and of course :
http://adb.anu.edu.au/biography/terry-samuel-2721 Also, I am including my partial transcription - 1827 for George Thomas PALMER’s land as it may well be helpful to your quest, particularly if you were to compare with various versions of the 1828 NSW census for that district.
My transcription of part of a digitised image re NSW land grants Reg Gen’s Deeds Rego Memorials 1826-1831.
Image 311 of 691.
Twenty Seventh and Twenty eighth days of August 1827
Thomas Fitzherbert HAWKINS Esq of Bathurst (NSW etc)
TO
George Thomas PALMER Esq of Parramatta (etc)
All of that piece or parcel of Land containing 2000 acres situate lying XXXX (could be o?ed) being in the County of Roxborough and Township No. 4 bounded on the West side by a line north 232 Chains, bounding Sections 1, 2, 3 and 24 chains of Section 4; on the North side by the Government reserve being East 80 chains to the western boundary of Township No. 2; on the East side by that boundary – bearing South 236 chains and South 55 degrees; West 66 chains to Macquarie River and on the South side by that river ….. And some observations from Trove newspapers
Colonel Morrisset has become the purchaser of a noble farm on the Winburndale Rivulet, from Mr George Palmer, where he purposes retiring as soon as the buildings now projected shall be completed.
https://trove.nla.gov.au/newspaper/article/2198476 Sydney Gaz 4 June 1835
And so, back in December 1829, George Palmer had a superintendent, Mr J LIVINGSTONE in charge at Winburn Dale, Bathurst Plains …
https://trove.nla.gov.au/newspaper/article/32072960 ? Sydney Monitor 26 Dec 1829.
As an aside, The Registrar General position mentioned is actually part of the history of the NSW BDM and of the NSW Land Titles office. It starts as a senior Admin position with the first NSW Supreme Court ... that Court's Registrar. He certified baptismal, burial, marriage records and of course these were 'deeds' so he kept a record of what he certified ... land deeds, debt deeds, bdm deeds etc. So the Early Church Records that NSW BDM has (the 'V' series on the registration nos.) initially were deeds of the Registrar General of the Supreme Court and when NSW BDM was established (1856) it was under the Registrar General of the NSW Land Titles Office. It was still under that in the 1970s

when if you wanted to look up BDMs you walked DOWNstairs at the NSW Land titles office.

(and you took your own feather duster or else !)
JM