Grapple Loader

I am looking to start production on this loader with trailer. I have made about 3 complete ones in the past with little changes to each after finding that changes need to be made. I use solidworks and only a simple user. I dont know how to do the stress test or how to verify that the loader is capable of doing other than building it and testing it. I am good enough though to design and cut out on plasma table. I will be subbing the mass cutting out to one of my metal suppliers that has a lazer. I use solidworks for setting pin location and clearances and designs. I have one I have built in our tree service now and love it. I only built it small to have mobility for my needs only, the one we will build will be full size. I feel this will make it easy to use and that a ordinary individual can afford one. I do need help with some of the technical aspects of this and probable will be a ongoing thing. So this will need to be priced for continuing work until production. I will require that you have Intellectual Property agreement and Nondisclosure submitted before I will even talk to you. I will be looking for advice in the designing and any changes that you see that may need to be done. I am looking for someone to take full interest in this and understand hydraulics and mechanical engineering is required! I will require that you show a project you have done that seems to compare to this project. I will be wanting that you can use solid works and we be able to exchange files accordingly. I dont want to have to convert a files. The is to be a trailer with a engine, loader, and dump-bed with a scissor lift. Things I need help on is the finalize of the current design, design of the bed, if decided to change up, design of the scissor lift, and general layout of the complete unit. I am only as good as the mistakes i have made to get me here. I have built several of these and scrapped them as found minor imperfections that i felt unacceptable. I will be in production with or with out anyone's help but prefer that some be provided. I am looking for fresh ideas and designs to make this big. This is only a small piece of the puzzle. I will plan to be building the large style in about a year. To compare to Rotobec, Prentice, and Barko loaders. There is ways to change little things to save material or make the construction easier. I am looking for help in the jigs, and manufacturing tips as well. I have attached a glimpse of what to come below. If I feel you haven't read this above or ask a question that clearly is answered in this description I will omit you from this project. I dont have time to deal with someone trying to "get by". Seems to be that way with a couple other projects I have had. I will be looking for a completed version at the beginning on May. If you truly fit the request i urge you to please apply. I will ask for a project that you have done in the past.