Hi steve
The only clear bubble MOC is the Romba which is one of the easiest Clear bubble POTF MOC's to find so ultimately there wont be valued higher for the clear bubble premium. Some of the cards are pretty creased edge wear etc.
Here is a break down of approx value
chewbacca = Approx £40 - £50 Crease to the front of the card breaks the skin / colour, some wear to the punch area (and possible dent to the bottom of the bubble?)
Imperial Gunner Approx £30 - £35 ulitimatly this is a loose figure and a cardback but the fact that its a Last 17 with weapon is reflected in the price above.
Romba = £30 - £40 Clear bubble is easy to find on this figure the card has price sticker damage and edge wear which all impacts the value
AT-ST Driver = £30 - £40 nice card looks like small white dot and residue in the top left corner from price tag removal, Below the coin the bubble is either cracked or scratched.
Paploo = £35 - £45 Nice card some wearing creasing to bottom left corner bubble very yellowed.
Leia Poncho = £30 - £40 Bubble yellowed card has wear specifically large colour breaks to the top right hand corner (At the bottom of the bubble has the card been touched up with black ink? if yes that would further effect value)
Wicket = £30 - £35 Card is pretty worn. Bottom corners both dog eared and bubble pretty yellow.
Emperor = £25 - £35 Card has significant price sticker damaged top right hand corner and bubble is pretty yellwed (normal for POTF Emperor bubble)
C3PO = £40 - £50 Card is nice and unpunched possible price sticker residue above the letter S in starwars, Bubble yellowed but looks in good condition.
B-wing Pilot £18 - £25 Card is rough large crease top lefthand corner, wear to card below the letter T in starwars under the bubble, Price sticker damage to the top righthand corner.
The bubble is yellowed, possible crack to the top left hand corner of the bubble, bubble has a price sticker residue and factory seal error on the left hand side of the bubble.
Luke Poncho - £45 - £55 Card is good and unpunched some wear / creasing to bottom left hand corner. Bubble is yellowed but good.
These prices are just my opinion based on the ebay sales i have tracked over the last 3 years.
I added some info that effected the way i priced them and please feel to use it if needed.
Any questions just ask
Take care Jay