OP: try to audition a pair of Westone UM2, you might find them sufficient for your purposes. Shure's black foam tips will fit on the UM2, so you can expect the same level of comfort and isolation as your E2c, with (IMO) better sound. They're well under US$ 400, and even cheaper if you're willing to buy 2nd-hand.
In contrast, the JH5 is $399 excluding ear impressions--you'll have to get those yourself. Also, if you're outside the USA, expect an additional US$75 shipping charge.
Originally Posted by iLovPieNCake
JH audio has amazing customs and customer service, they never disappoint. 1964 ears is a rising star on head-fi and their prices will only go higher and higher as they gain reputation.
I recommend you buy the 1964 Trips, They will offer a bit more bass while remaining as neutral as the JH5.
I like the guys at JH, but I have to contest the statements in bold.
1. Customer service--there have been complaints about their customer service, although whether these were justified is open to debate. I don't believe they're bad or lazy folk, but let's just bear in mind that they are a small team with many, many orders pouring in, and it's just plain hard to keep up consistent customer correspondence under those circumstances.
2. JH5 demos aren't neutral. They're warm. By all accounts, demo units appear to have less bass than full customs (across multiple brands), so it would stand to reason that full custom JH5 are even less neutral than the demo.