This is the site you can use to search for Orange Count deeds:
https://or.occompt.com/recorder/eagleweb/docSearch.jsp
If you want to search for a specific resort, go to the advanced tab and enter the resort name in the "Legal Remarks". I usually just enter a part of the name in case it's not recorded exactly the same so for BLT, I put "bay lake" (in quotes), PVB I put polynesian, etc. Due to the volume of contracts being sold, you'll need additional criteria such as the beginning date or a date range. If you want to find anything Disney has sold, put Disney in the Grantor box...anything Disney has bought back put Disney in the Grantee box. I usually put 1 in the "Deed Doc Tax" too to eliminate any gratuitous transfers and only give deeds (you can uncheck a box and just select deeds too, but I just use the $1 method).
Most deeds now include the purchase price, number of points, and use year. Some don't include this and ones taken by Disney also don't include this so it's a little more work. If the purchase price isn't included, you can take the "Deed Doc Tax" and divide by .007 (the tax is $0.70 per $100 of purchase price). There are ways to back into the points using the ownership %, but that's more complicated. Since there aren't too many, I usually just do another search on the sellers to get the points/UY from the original deed. If it's been resold a few times, you might have to go through a few iterations. Once you get the hang of it, it goes pretty quickly.