Hi DSB,
well, all has pretty much been said. EXCEPT ...
You indicate a 5mm ep is on the shopping list. Well you already have a 10mm and you're gonna get a 2x barlow - correct?
So, you'll have a 5mm ep with those two won't you? There you go - I've saved you $75 already.
Many people avoid buying the short fl eps (like the 5mm) simply because they have a crappy little hole to look through (you'll notice the hole gets smaller as the fl of the ep gets shorter). And the eye relief is hopeless in the short fl eps as well. Instead they buy a barlow and stick with the longer fl eps which gives you the mag you want and with comfortable eye relief and a decent sized hole to look through.
Just my 2c (or was that $75)
