How's the petcock? This is a major issue with these bikes. A rebuilt / half decent petcock will fetch $70 on eBay. They're common to the larger 305cc Honda Dream and are PITA to work on. They tend to seize up regularly.
If your REALLY like the bike you could spend $200 on it. Looks like the exhaust is shot, needs tires, probably rusty tank, not sure about the petcock or electrical.
Luckily you don't have turn signals to worry about on your US model (in Canada and in other markets it was known as the C95 and has turn signals). These just add to the cost / complexity of fixing the thing up.
The Thai parts are all repro, are expensive to ship and aren't great quality. I ordered one or two things, but am avoiding those parts.
I fell in love with the bike - it's a nice little 16" wheel bike to scoot around town on. I want mine to be black ultimately and get my wife riding it.
Tell Greta to sell you the bike so you can give it the love it needs.