I started to play recording on 80s too using a Tascam Porta One (4-track cassette) and then just got disconnected from this world. When I came back a couple decades after, it was a digital world driven by DAW (Reaper similar software). What I mean is that it will be hard to find something too much different from this nowadays. But seriously, when I faced those new softwares it didn't take me more than a couple days messing with it (and without any literature) to figure out the basics. I can tell you that it is pretty easy, specially if all that you want to do is to record a few tracks. It is just a matter of set up your hardware correctly (audio interface or soundcard) that I presume you already did since you got Audacity working. Other than that is just to click on the record button and play your tune!
You said you don't like Reaper interface, but what exactly you don't like on it? Basically it mimics a record mixer just like any other DAW. If you don't like it, well, then you cannot think about ANY other DAW (Cubase, Protools, etc) since all of them have the same style.
Also you said that you have used Audacity with some success. Well, Audacity interface is not too much different from Reaper and others (unless by the fact that it is very ugly), but the concept is the same. I am really lost here.
About the complexity of DAW (and Reaper is one of the more simple of them -- I have played with Cubase, NTrack, Samplitude and others) it depends on what you are going to do with it. I repeat, for simple recording -- and that's what you said you wanted to do -- there is not any complexity. Unless, of course you are talking about a different software called Reaper that I don't know. The Reaper I mean is this:
REAPER | Audio Production Without Limits
To use these programs is as simple as the good old school: you hook the cable, press rec and you are gone. So I really cannot see where is this complexity.
Anyway, if you REALLY cannot go for this way then I'm afraid that computer recording is not for you. In this case I would suggest that you think about to get one of these:
Tascam DP 008EX Digital Portastudio 8 Track Portable Recorder 043774024995 | eBay
This is a modern version of old portastudios and probably you will feel more comfortable using one of them.
Good luck!
