I hate to ask this but, if you are still having trouble with basic orientation, why are you leaving your trainer?
This is what they are for. Slower and easier to control as a rule. You can always get one that your OS 70 would fit on if that is your desire.
How long have you been flying and are you really ready to move on? Be realistic please.
BTW TXAGGIE - I have one plane, the entire fuselage is neon green and the entire wing is neon pink. It is impossible to lose sight of it in any lighting conditions except for right in the sun which should always be avoided. I don't understand all these people who can't tell what way their planes are flying unless they have different colors or stripes or some other gimmick. I have ALWAYS had solid colors, because I like it that way, and NEVER had a problem. There are plenty of other visual cues. You can't see all that stuff under certain lighting conditions anyway. IMO
But hey, maybe that's just me. Go figure.