Santiago and Jonathan will no doubt select a variety of names/numbers for the E5s based on your input. But we can't offer all names for just a few models made. And we can't promise names/numbers because they are made in such low quantities. I have resisted breaking out SKUs for each engine name, as it makes the logistics of repairing/replacing/delivering the exact name/number that multiple customer would want. So I don't see how I can change this issue on this project either. But we take suggestions with the orders and try to make those names / numbers that a few customers requested and we randomly pick name/numbers for the remaining orders. We just can't do this for all orders, it's just not possible.