I did mine completely custom as the race railz are a crap idea for positioning in my books, just look at Chip O above ^^^ As the mount is completely diff then if you had crash bungs/frame sliders and thus if you already had one set on and switched to the other you need 2 diff holes, and then stuffing up the fairings more. Sorry Chip O im not having a go, dont take it personnely :)
I just expected and wanted something i could change whenever i feel, like of i wanted my vortex frame sliders on i could easily swap them over etc, But with the race railz you couldnt do that OEM. BTW if you ask them nicely and all ask them for some new stickers for your newly moded race railz, as they sent me the extra stickers at no cost, and thus it all looks the same now, stickers and all :)
So what i did was get some tubing the same as the railz engine mount front. Measured where the same location is for the engine mount so its a direct bolt into that location, as you would with frame sliders. Be sure to measure dead centre, and allow for the centre of the tubing. Then cutt off the race railz mounting metal, Reweld the tubing on ( I went to a local welder paid a carton of beerr as i have no welder), Re powdercoat it the colour i wanted or get some spray can colour and paint up after its all cleaned up and mount as you would.
Now onto your issue
the Left side is a PIA for your socket and or ratchet to fit in, either go to a hardware store looking for one skinny enough to fit in. Another issue can be its so far in your ratchet tool cant grasp that far in to your socket attachment. What i did was disconnect the ratchet/socket, and place the socket within the hole and have some long nose pliers to keep that socket in place and tighten the bolt up. as in time it comes out enough that you re connect your socket and ratchet to tighten it all up. then go buy yourself some rubber grommets to fill the hole from looking ugly. or another trick is on some stools there are rubber feet. I found these fit perfectly to cap off the hole :)
And another tip, get a cheap mouse pad (the rubber variety with material on top) cutt a section for the subframe mount area, to save it scratching your paint. Glue it onto the mount and your set, free from damage :)
some pics are here..
Ohlins- Fork Springs, Shock, S.D, UES Kit 20mm, PCIII, Velocity Stack mod, RS-5 C.F Yoshi, Dynoed, K&N Air Filter, Cox Radiator Guard, Powers Race Railz mod, MOTY Battery, Pazzo Levers, Harris Grips, Stomp Grips, Ram mounting, Custom Fairings, Custom led gauges, C.F -Hugger-Sprocket cover,Exhaust,Heel, Chain, Engine,& clutch guards. Trippage led pegs, 520 Conv, -1 +2 Superlight Sprocket, Comp werkes FE, Dunlop Q2's, EBC Kevlar Heavy Duty Clutch/Springs, Vesrah RJL Pads,Braided brake lines