There are a few elsbetts kicking about (i have one of them) Depending on your situation they may (or may not) be good.
If I was going a one tank would consider one, although now you can buy injectors only and build the rest of the kit up yourself. One advantage is they come with all the bits in a box, which saved me a lot in going back and from the parts shop. If you were paying someone else to do the job. All of the stuff seems to be good quality.
For a 2 tank conversion I am not sure I would bother, unless it was on something new.

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cheers
Chris.
1990 landcruiser 80, 1HD-T two tank, copper pipe HE+ 20 plate FPHE, toyota solenoids and filters. 1978 300D, elsbett one tank system. 1979 300D veg oil/ diesel blend for now.