It's surprising how the cost adds up on a nice plane. But when it's done and you bring her out there it's worth it. So long as it doesn't deter your wish to fly her!!! Just keep in mine that there are a lot of folks out there who put $1200 just in the engine.
A friend of mine cautioned me when I built my first plane with pneumatic retracts that I had just doubled the complexity of the plane. He was right! But the is nothing like hitting that switch and watching those wheels tuck away. Nothing. Unless you count seeing them come down again
All that being said, a buddy of mine who is a heck of a builder, has had a twin Ultra-Sport with retracts for about 8 years. It's not the 1000 but rather the smaller one- maybe 68" wingspan with a pair of OS .32's on it. Boy does it fly and it sounds just terrific. So give it a go and let us know how she comes out. Those new electric retracts that someone mentioned might just be the ticket.
Good luck!