Good for you. 
I got some free pygoras a few months ago, that's one sure way to learn how to deal with problems. lol. My freebies had matted icky hair too, and I just cut off the matts, as there was still plenty of hair under that (3+ inches of nice fleece under the matts) and it was not cold at the time. If it works for yours, maybe just cut out some of the belly matts so he can pee without getting messy. ?
The only thing that I didn't see are vacinations, (CDT) and BoSE if appropriate. Glad to hear he is happy, I am sure that makes you happy too.
I got some free pygoras a few months ago, that's one sure way to learn how to deal with problems. lol. My freebies had matted icky hair too, and I just cut off the matts, as there was still plenty of hair under that (3+ inches of nice fleece under the matts) and it was not cold at the time. If it works for yours, maybe just cut out some of the belly matts so he can pee without getting messy. ?
The only thing that I didn't see are vacinations, (CDT) and BoSE if appropriate. Glad to hear he is happy, I am sure that makes you happy too.
