First I would mention that if this run goes underground you need THWN.
Moving on, five or six - 6 AWG THHNs are allowed in 1" PVC. It depends if you are using schedule 80 (five wires) or schedule 40 (six wires)
The NEC allows 360 degrees of bend between pull points, three 90s and two offsets should be fine unless you made you offsets sharp.
I do not see a problem with this pull, although I would definitely use wire pulling lube, you can get small containers of it at any decent supply house. I like Dyna blue pulling lube it cleans up easy.
Construction & Maintenance Electrician