I do a bit on a mk 2 with a 60G, we looked at all the options mentioned and even with my reservations about quaife, the box is fantastic, lovely change and of course you can use a off the shelf bell housing and for us meant we could take the original type 9 as a spare.....
Drenth and Selholm MPG box are essentially the same unit....tractive is fantastic but very pricey....
No experience with the elite.
Apart from the lousey customer service, the quaife option does make sense....