I think you'd have some interest if you put together a basic menu of items with the recipe, geared toward the heavy duty DIYer.
Weld on brackets offered, what a guy would need to say, to complete a front axle install (what year axle a guy would need to use your prescribed recipe for instance). "You'll need to source these shocks, these springs, this or that axle..." Let your customer have the shopping list, and sell him the brackets.
A video showing you doing a conversion, and how a guy goes about locating your brackets to the frame during weld for instance, would go a long way.
Steering details get a lot of guys hung up as well, showing how you handle this would be key.
1995 E350 7.3 Diesel, 4x4 high roof camper, UJOR 4" lift