Gorgeous sheep!
You are very fortunate to have a spinner close by to you. Spindle spinning is wonderful and you may be surprised just how much yarn you can spin using a spindle.
Wheels are great if you have chunks of time to dedicate to spinning, but if you don't, you may be able to get more yarn spun using a spindle since they are so portable. If you keep your spindle and wool with you at all times, you will be able to spin a few minutes here and there (like when waiting in line).
Spindling is a great way to learn the 3 basic movements of spinning ... drafting, putting a twist in the fiber & winding on the bobbin. If you do decide to get a wheel, and there are spinners that never do, you will have the drafting down pat!
I had thought long and hard about turning one of our outbuildings into my fiber shop, but since our children have flown the coop, I have 3 bedrooms upstairs (2 which I have converted to fiber spaces!!)