Pear wood is "the" perfect wood for ship modeling. Modelers the world over value it for it's ability to retain detail and the beautiful consistant colour and dense grain. Over years the wood gains a "pantia" or natural finish that just gets more and more beautiful. Clear oil and or wax is all that is required to finish it.
As for seasoning, it is like most other woods, a year an inch is normal. Stack criss cross for ventlation and make sure you coat the ends of the logs or boards with wax or seal with paint or watered down glue, to insure they don't check too much.
If that is too much work ..... send me the tree, and I'll dispose of it for you!!!!!

Really, don't waste the wood, it is great for all sorts of carving, hard wood, but well worth the effort. Most fruit woods are great like that, but Pear is prized above all!
Bob