to harvest some raw logs and rough saw them. Winter, though it is cold, is a good time because for the most part the tree sap,has left the tree for the root system. You might find some logs available from a landscape contractor or a local park and rec from their tree pruning programs. Once you have them, seal the ends and get the logs off the ground if possible. Then comes the best part. When you are able to process the logs to lumber to flitches you need to let them cure. Here are simple plans and good information on building and using a solar kiln to reduce the moisture content.
DON'T rush the drying process!!! If you do you will create problems and lose both quantity and quality of good finished product
https://pubs.ext.vt.edu/420/420-030/420-030_pdf.pdfhttp://forestandwildlifeecology.wisc.ed ... ons/98.pdfWOOD Magazine also has a really good plan for a little larger kiln.