If you get it powder-coated (or some similar thicker paint), don't forget the following items afterward:
1. Cut the paint off the outer ends of the swingarm's pivot tube and the corresponding sites in the frame. Otherwise the swingarm will bind when the pivot bolt is tightened up.
2. Make sure to [re]open the frame vent holes at the sites just behind the rider's footpegs, and just in front of the lower engine bolsters. If your K1 frame does NOT have a small drain hole in front of the lower engine bolsters, add one on each side to prevent frame rot right there. This was a Honda Service Bulletin when the holes were forgotten at the factory and some frames rotted and had to be replaced. A 1/8" to 332" hole is adequate after painting.
3. Remove the paint from the top & bottom of the front steering bearing mounts before reassembling the steering tree, or else it will quickly work in some slop (in like 50 miles), making the steering loose and causing handling problems. While you're in the top tree, consider getting some tapered steering head bearings to replace the old ball & race arrangement, as those only last(ed) about 10k miles. All Balls has the sets.