As you clearly state you have a problem with delgating work and giving up control, once you get staff under you you will find you have less time to do any hands on work and you will be spending more and more time behind a desk pushing papers around.
You really have two options either go with the flow and leave hands on work behind or stay with the idea of getting your hands dirty and get someone to organise the workload. Managmanet of any kind involves meetings with other department managers and very little if any hands on work from your description of your self I don't think that would make you happy.
Only you can answer this for yourself do you want the hassle that goes with managment and very little chance to do any hands on work or would this make you happy. Remember that as time goes by you will be tied to that desk more and more what may at first appear a relief from the everyday troubles will eventually feel like a ball and chain around your neck unless you want this.
Most of the above suggestions while they might work for now are only at best a stop gap measure and if implemented will only be putting off the ineviatable decission. It is best to make a clean break now as any procrastination will only be to your disadvantage latter on.
This is something that you are going to have to think long and hard about what you want to do and how you want to achieve this.
There is also this to remember there are some people who can start an organisation and get it up and running but these very same people have a hard time of working in a structured enviroment once the company or whatever is setup and system put in place as they constantly need to buck the system to get things dome when they think they need doing rather than when the system requires them done.
I know it's not an easy decission to make but it is something that you are going to have to do, you are going to have to ask yourself can you live within the enviroment of a going concern as apposed to the guy who starts things off and knows all the ways to cut corners and get things doen, while this is a definate advantage when starting any business it isn't at all helpful when it is established and growing.
It is a sad fact of life there are those of us who are starters and excell at this type of work and then there are those who can work within an existing framework and most times the two don't mix well together. If you really loved getting things up and established now is the time to move on to another job where you can use your tallents rather than staying and becoming unhappy and eventually walking out in discust or being firred.
It is always easier to find another job when you already have one than what it is to find a job once you have left under a cloud.
While I'm sorry for this responce it is honest and it is something that you serriously need to think about.
Col