I have a KLR650 but have sat on a KLR250 and it wasn't much lower than the 650 in hieght. It is a simple engine and bike, so repairs wouldn't be an issue. I'm sure there are more modern bikes out there in a higher cc range with better horse power ratios. But if you want to fit in, an older more reliable bike in the smaller cc range like you have stated is probably your best bet. Any bke will take you RTW if you look after it.....it's all personal preferance....nothing else.
Take whatever bike you like and just get a taller seat and raise the bars. You should be fine. But wtf do I know, I am a midget compared to you lol