I think if you want one stop shopping today, either Gene Berg or VW Paradise will make you very happy (if not in the wallet). If I had just one vote today, for a one stop shopping solution, it would be VW Paradise and their Redline/Weber solution. The product is well integrated and Kris at VW Paradise is very knowledgeable and accessible (just like Pat Downs is at CB, when CB gets their new system out on the market).
I have settled on Redline/Weber Throttle Bodies (they are beautiful Billet items and look fabulous). I am building my own MegaSquirt ECU to control the whole system. MegaSquirt is an open source project started by a couple of engineers a number of years ago. It is open source so the rate of improvement and change is striking. It is also a very cost effective solution; the whole ECU will run something between $150 for a bare bones setup, to say $400 for the top of the line.
As far as FI being offered on Beetles in the past, the answer is correct! In fact, for anyone wanting to do a very inexpensive system, much of the Mexican dual port FI bits can be put together with a Megasquirt ECU to yield a state of the art solution for smaller displacement engines (for sure 1776 and maybe up to 1915 with little major surgery). I have a set of Mexican End Castings, Manifold Runners, Throttle Body, Generator Stand, etc. coming from a Mexican source that I am going to modify for use on my larger engine (this is a longer term project, largely for my own education). These pieces would go right on a smaller displacement engine and provide a super low cost and effective solution.
If you want to go EFI and are not sure what you options are, feel free to email me and I will be glad to tell you everything I have learned over the last few months on the subject. Also, Bruce Gordon, who posted earlier on this thread, has forgotten more than many will ever learn on the subject and would also be an excellent person to query on the subject. Bruce really got me pointed in the right direction.
It really is not as daunting as many who know nothing on the subject would lead you to believe (that never seems to stop them from posting does it?). It will take a few hours reading and assimilating, after that, you will be convinced, one way or the other. All in all, it has been some of the most fun I have had with my car, I highly recommend it.