According to Kentucky Statutes, Burglary in the First Degree is a class B Felony (KRS 511.020). A person can be found guilty of burglary in the first degree when he knowingly enters or remains unlawfully in a building, and when in effecting entry or while in the building or in the immediate flight therefrom, he or another participant in the crime:
(a) Is armed with explosives or a deadly weapon; or
(b) Causes physical injury to any person who is not a participant in the crime; or
(c) Uses or threatens the use of a dangerous instrument against any person who is
not a participant in the crime.
By your description and the length of incarceration you listed, I must assume that the charges of Unlawful Taking were for more than $500, a Class D Felony. According to KRS 514.030, in general, Theft by Unlawful Taking is a Class A misdemeanor unless the value of the property is five hundred dollars ($500) or more, in which case it is a Class D felony;
A Class B Felony carries with it a 10 to 20 year sentence of imprisonment. A Class D Felony carries with it a 1 to 5 year term of imprisonment. Since you stated you would have to serve 12 to 30 years, I believe they are talking about consecutive sentences for alleged crimes committed at different times. (See KRS 532.110)
Kentucky Administrative Regulation 501 KAR 1:030 determines the actual time of your sentence. Quite frankly, to provide an accurate assessment regarding the amount of time you would serve requires additional facts. However, since your case is still pending, I do not recommend you make any statements on this website or anywhere else as they could be used against you. Therefore, I will base my answer using the worse case scenario. Since the crime occurred after June 26, 2007, 501 KAR 1:030 indicates that you would be eligible for parole after serveing 85 % of sentence received or twenty (20) years, whichever is less. In this case, 10.2 years to 20 years.
However, I did glean from your question that you may have a defense which your lawyer could use to reduce the charges on a plea deal or at trial.
This answer is for informational purposes only. Nothing in this answer should be construed as creating an attorney-client relationship.