OK I'm really sorry but we got swamped with military contracts and i haven't even had the time to draw up anything or run any test pieces. I have came up with the hump tho , i was thinking and it may also be able to be done inexpensivly. taking a piece of thin guage aluminum , water jetting it to size and having 4 holes through , using the exisiting hump bottom plastic piece , and 4 eyehole bolts , mount the aluminum piece to the plastic bottom and have 4 eyeholes to attach straps or whatever. Could be polished or anything else. I was going to just trace and cut a piece one day when i can order some material. The bells we cant do tho , sorry the machining time would run cost to around $50 a bell. Machine time costs $65/hour and programming is $100/hr also material prices , even with just at cost its just to much. Stem stands... i looked into it and it could be possible for a double stem stand at a decent price. The only problem im facing is actually getting a machine free long enough to do anything. Some things i cant due like the valve covers and engine parts for cost. Some things just take to long to machine and test and price would be pretty high.