Right mate how many receivers are you looking for?
What is your budget?
Also there is more out there than just free view. Also I would get the Sky receiver to **** rip it apart get the HDD out it.
You have given a good bit of information but more is required and as you say no sub to Sky then no record but there are other receivers on the market, if you simply just want to record when out then a single tuner will be fine, if you want to record 2 things at once or even more then theres other receivers out there.
If you have a motorised dish theres much more than French and UK sat you can receive.
Basically how many receivers do you need? What is your budget. Does one or more need to be twin tuner or more or are you okay for all to be single tuner?