No problem. Handcycling is great i t gets you out, its social and you get alot of benefits from the freedom.
Before you commit to buying a clip on, have a look at the Top End XLT Pro and also the Intrepid Tourer. I dont know if the position on these bikes might work for you? Legs are slightly bent.
If you decide to go down the clip on route, think about getting a decent size front wheel at least 20" but better off with a 26". reason being a) traction on hills, ramps etc

Getting up the good old UK Kerb!
Of the clip ons i have seen the Da Vinci Veloce and Praschberger Challenger look to be best. I have a friend selling the 1st one and it can be seen on
http://handcycles.synthasite.com/Current_u...es_for_sale.phpBut beware its easy to pay lots of money for these types of bike and would recommend you shop about, get quotes. I know there are some german companies on Germanies Ebay (One caleed Rohlstuhl Shop) who will ship a basic used clip on bike including a wheelchair for <£1000. I have heard horror stories of people spending £3000+ which is as much as i spent on a bespoke racing handbike.
Please keep us posted as to how you get on?
Cheers
Robbo