I know you're familiar with clothing from the SF, so you obviously have your reasons for needing a suit that's MTM. For the best bang for the buck, if you have a good alterations tailor, go on eBay and get yourself a brand new Hickey Freeman for the same price. Canvas construction, horn buttons and similar (but better) style as HSM. There are also plenty of near new HF's for far less. HF is single vented, however.
If you post what size you are and I may be able to help you out.