Hello,
Sounds interesting...
I'd like to discuss more details, please!
For now, before I could estimate required efforts/time, it's impossible to post any reasonable bid...
Well, I have to notice that I did get a large practical experience with programming for RS232 (on the C# as well), for various real-life business projects, including my work with Tektronics (for their devices software). Some of such projects are in my portfolio here.
I hope to hear from you.
The sooner the better, to allow me schedule required working time if we agreed work together.
Best regards,
Igor.