Depends on how authentic you want to look. That jacket is not cut like a RD II. One of the three criteria for an authentic reproduction is correct pattern. The jacket looks too long and the sleeves don't look right. Looks like modern wool so it doesn't meet the second criteria. For sure it has machine made button holes and no top stitching which makes it fail all three criteria. There are several other things that appear not to be correct but for 75 bucks you don't get a lot. If you are on a tight budget you have no choice but you need to know what you are getting.

Here is a site for a good RD II. Not as expensive as some but good jackets non the less. http://www.wwandcompany.com/cs-items/82-richmond-depot-jackets.html

One thing to remember, these jackets were cut short. You have to get correct made trousers to go with the jackets. The waist on these trousers was measured around the belly button and that is where they were worn. No saggy drawers around your knees in the ANV. You will also need suspenders since CW trousers did not have belt loops.

Of course you could get a used uniform. There is a site that sells such from guys that are getting out of reenacting.