SLIMs can't be Jtag'd, only RGH'd. It may be pedantic to point that out but if you unwittingly get the wrong tools because you think "it doesn't matter" what you call it, it's your own fault.
1175's come equipped on a Corona v1, v2, and maybe v3. Here's a breakdown of what each revision would require.
v1: DGXv1.1, J-R Prog = $50 OR CR revC, Cor QSB Upgrd, J-R Prog = $55 OR CR3 Pro Ult Kit = $70
v2: DGXv1.1, 4GB SD Adptr = $38 OR CR revC, Cor QSB Upgrd, 4GB SD Adptr = $43
OR CR3 Pro Ult Kit, 4GB SD Adptr = $83 (v2 might also require POSTFIX adapter = $15)
v3: DGXv1.1, J-R Prog, POSTFIX = $65 OR CR revC, Cor QSB Upgrd, J-R Prog, POSTFIX = $70
OR CR3 Pro Fake Post Ult Kit = $70
PLUS a DG-16D5S LTU2 Replacement PCB = $50
Bottom Line: anywhere from $95 to $140 for everything you'll need (TX tools) to do this ONE time (includes TX US shipping). Your other option is to send it to someone (I happen to be someone who does this) and it'll cost you $110 - $130 (US shipping both ways) to have it done right this first time. If you're not very good at soldering or have POS soldering tools (most hobbyists do) you WILL get frustrated and/or screw it up.
(P.S. If you're in the UK, obviously you wouldn't send it to me or anyone else in the U.S.)