I'm having the same problem and BRU is telling me that it doesn't convert to a toddler bed, only a day bed. I'm waiting for a response from the manufacturer
***maybe this will help...i have the same crib and can't find a kit, but i found this online...
http://www.deltaenterprise.com/pdf/7786_New_Soho.pdf
Bed rails for a toddler bed can be purchased at most furniture stores or department stores. Walmart, Target, Babies"R"Us, and Bed Bath & Beyond are all good examples.
You will have no issues with compatability
Heated towel rails can be purchased at any retailer who sells or specializes in home improvement products. You can also purchase heated towel rails through your local home remodeler.
Toddler bed rails are available in a variety of locations, including department stores, Babies R Us, warehouse stores, and online at retailers such as Amazon, eBay, and Kijiji.
Moosehead made a separate set of side rails for queen size mattress.
To convert a Delta Love crib into a toddler bed, first remove the mattress and side rails. Next, detach the crib's front rail, which is usually designed to be removable. Then, lower the mattress support to the appropriate height if necessary, and reattach the front rail if it comes with a toddler bed conversion kit, ensuring it is securely fastened. Finally, place the mattress back in, and your toddler bed is ready for use.
Safety is a top priority when purchasing a new sleeper or rail system for a toddler or small child. Amazon sells a range of bed systems and rails for children.
Clothes rails can be purchased both online and in stores. Online retailers include Amazon and Overstock. Retailers that offer both online and in store purchase options include Bed Bath and Beyond and Target.
Kittens are not babies and they can still slink through crib rails. Kittens can stay in one room, if needed.
http://www.toysrus.com/product/index.jsp?productId=3839309 I'm ordering these from Toy R' Us
The inside rails inside of the main rails are called guard rails. They are there so that if there is a derailment the train will stay within the rails instead of off of the trestle.
You would need rails, detector rails, power rails, and minecarts.