Do some 3D Modelling

I would like some models made of a pipe and joint system. Pipe and joint systems are items like work benches, storage racks, converyor belts etc., made up of pipes and connectors. They are essentially kits in which you mcan make any custom frame, which sheets, wheels, lights etc. can be added to make a finished work system. Here are some examples: [login to view URL] I have 5 systems I need modeled, and I can provide all the 3D files for each of the connectors so all you need to do is assemble them- possibly add things like storage tubs, boxes, tools (all generic item you can download free from a number of websites. I need you to use the connectors I provide. I am paying £15 per assembly, (£75) total, and will provide an image for each assembly. From that image I need a similar model made using the connector parts I will supply you. It just needs to be roughy the same, you can get creative (exact dimenstions etc., are not nessesary). So, in summary, I need 5 models assemblied, using connectors I will supply, from copying from pictures provided. The pictures are a rough guide, if you feel you can make a system better than that in the picture, then that would be great. Note: I will provide the connectors only. You will need to model any table tops, tube lengths etc., to fit the model, but that should be very basic shapes, but essentially this is just 5 quick assemblies. The connectors come in black and metallic, and the pipes are available in a few colours, so if you want to change the colour of the connectors or pipes to suit your assembly then that's fine.