Custom Scenery Exchange / Looking for missing objects from two scenery groups

Hello. I'm looking for the remaining objects in two scenery groups that I can't seems to find all the objects for. This is the first one https://www.nedesign...ct/6803/frames/ which apparently has 18 objects, but I can't find half of them on this site, including the frame pieces needed for the intended coaster supports. The other is the 3D letters scenery group, https://www.nedesigns.com/rct2-object/4310/3dletter/ which shows as having 26 objects (the alphabet, basically), but I've only been able to find around half of those as well, inducing several of the letters needed for the intended name. There isn't any real information included with them to track the rest of them down. Does anyone have the rest of the objects from any of the two scenery groups, or know where to find them?

Thanks.