Any manageable/short bikes for weak bloke trip around Africa?

[Whisky]

Hello hubbers I hope you can help!

It's a new slant on an old question - I'm after a bike that is easy to handle (possibly short) for a trip around Africa.

I'm looking for a bike with the following requirements:

1) Easy to handle
2) Low (if possible)
3) Big tank
4) Enough grunt to keep up with 650s
5) Electric Start

Two years ago I was diagnosed with an illness that is like arthritis but affects the muscles. It made my muscles waste away a little and I have not since regained full strength. Although I'm now strong enough to handle a bike I am looking for something that will make my life a little easier. Despite this I have decided to upset the doctors by embarking on a trip around Africa - what can you do?

I used to ride an XT 600 tenere ('89) - i took her to india! She was a beauty but was very tall. Although I would love something that tall again I don't think i could manage it.

I am looking for a bike that can keep up with my friends. They are on Suzuki Dr 650 and honda Xr 650.

I would consider lowering any of the above if suggested and would consider any engine size - if a 250 could perform then that would be great.

I will be using soft luggage and will not be taking much! (just Panniers and tent!)

I hope you can help and will let you know how i get on.

Whisky