There used to be reproduction pans, but the problem was (as I mentioned) they didn't fit every vehicle and there wasn't a great demand. I haven't seen one for quite a while, however there could be some old stock kicking around, I suppose. I don't know if you've looked on eBay lately, but a used oil pan is going to sell for more than you can purchase an entire decent 235.
Let me pass on what I did with a gas tank for a log splitter we own in NM. The gas tank had held water before we got it and it had rusted badly...several (over 30) pin holes and some of those were about 1/8 inch or more. And the metal on the bottom part seemed thinner as a result of the rust. A new tank for the motor was $125 plus shipping, and the seller was careful to point out it wasn't an exact fit but he thought it would work with some modification. So I split the old tank at the mid-joint, cleaned it within an inch of its life, mixed JB Weld (
regular, not the Kwik-Weld variety) and thinned it with acetone. The JB Weld people told me I could also use lacquer thinner, but I didn't have any handy that day. They told me to use no more than 1 teaspoon to 2 tubes of the JB Weld, but I didn't follow that advice. I added maybe twice that much, mixed it very well and then painted on a thick but uniform coat with a short hoghair brush. I did this on the top and bottom and over the lip of each part where it had been split. I let that dry/cure for a few days and then I epoxied the two halves of the tank back together and let that cure. Never have had a problem and that was over 3 years ago.
However, I think if I had to repair an oil pan, the best way would be to drain and remove it, clean it like crazy, inspect well and find all holes and use my oxy-acetylene torch to braze every one of them very nicely. You could also use silver bearing solder (buy the Harris StayBrite and be sure to get the flux with it...they sell a small pack in a plastic tube:
https://www.harrisproductsgroup.com...ng/Lead-Free-Solders/Stay-Brite-Kit.aspx ) and a common MAPP torch. Either of those fixes isn't hard to do and will last about a week past forever if you do them right.
