Hey Old Scrambler!
Your motor is looking great. You know you'll have to run against the 250's at BUB and SCTA, but if you use the stock venturi sized carb and a stock type exhaust system, I believe you can run M-PP (no record showing in 2010). That is, modified frame with stock engine. Internals can be modified as much as you want as long as you use the stock cases, cylinders and heads. Just a thought.
As for posting more photos, you should be able to just log into the forum, and click on reply to your own post. Don't try to change the subject line; just add in more text and click on "Additional Options", and add your new photos.
Tom