The UA5 mod is pretty easy to do and I think it sounds great without the Oade mods. That being said, if I had a budget around $1000 I would do:
mics: Studio Projects C4 $319 new (some places free shipping) - gives omni and card, shocks and supposed to sound great
Preamp: Sound Devices MP2 $375-450 used, send back to factory for rechargable battery upgrade (+$50)
Another $40 for a bunch of rechargable AA's. I'd go with this over a UA5 because the meters on the JB3 and the UA5 suck and the JB3 AD path sounds pretty good, so an outboard AD converter isn't necessary. The mp-2 probably has the best meters for its price category.
JB3: $150-200 used/refurbished/new
2nd JB3 battery $50 new
Cables: $10-30 for a quality 1/8" stereo analog cable to go between the MP-2 and JB3
15' Canare Mini-Starquad with gold neutriks $30-60 depending on if you want right angles, have your own soldering tools, wire stripper, etc. I think 15 feet is a good lenth (should allow you to run mics at 12-13' and keep bulk down - esp with the mini-star quad). Alsoif you haven't soldered much, I think I would try to get Leegeddy to make a pair - they are great quality and he is very reasonable.
Stand: Bogen stand from B&H or APIC stand $60-100. You could get a cheaper stand on Ebay, but think about how much outdoor taping you will be doing compared to club/theater taping. Cheaper stands are often bigger. For me, I like a stand that is less than 24" all folded up and can be run with a narrow footprint so people don't trip over it in aisles. I don't think I have ever run higher than 10', so I definitely don't want to lug around a full size stand that can go 7' higher than I would ever run. Also if you order from B&H or APIC, you can make sure that you have all the adapters you need to mount a tbar or vert bar.
If you total all this up, it will be around $1100 and would cost less than a new C1000/Tmod UA5/JB3 setup. A cheaper option that also sounds good are the Superlux SMK-H8K set.
Optional:
Camera bag, Rakgear backpack or fanny pack: $20-50
Shure A51 vert bar: $50 used - the easiest way to run mics IMO
Shure or DPA windscreens - $60 for outdoor/windy taping
Clamp: $25-40 In case you want to run spread omnis.
If you want to add AD, you could always pick up a mod SBM1 for $4-500 later down the road.